PlexWriter Premium 2 review (by HWP)
| Plextor Writer Discuss, PlexWriter Premium 2 review (by HWP) at CD and DVD Writers forum; Mitsubishi Chemicals, Type 5, 700MB, US+RW, as sold by Verbatim PoweRec: ON GigaRec: OFF AMQR: OFF 32x P-CAV writing speed, no slowdowns. This is a test of a never used before disc. A total of 6 burns where done, with a full erase between each burn. US(+)RW media usually have |
| Mitsubishi Chemicals, Type 5, 700MB, US+RW, as sold by Verbatim PoweRec: ON GigaRec: OFF AMQR: OFF 32x P-CAV writing speed, no slowdowns. This is a test of a never used before disc. A total of 6 burns where done, with a full erase between each burn. US(+)RW media usually have a 'break in' time of about 5 burns, until they start to give reasonable results. This is nicely shown in this test. Also kudos to Plextor for providing a drive that can handle US+RW media not only on the spec sheet but also in real life! Scans below are 1. burn C1/C2: 629981 C1 errors, 2806 C2 errors, 2 CU errors 1. burn Beta/Jitter 2. burn C1/C2: 1023303 C1 errors, 10449 C2 errors, 145 CU errors 4. burn C1/C2: 434099 C1 errors, 44 C2 errors 6. burn C1/C2: 265405 C1 errors, 2 C2 errors |
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| FE/TE-Test comparison Mitsubishi Chemical Corporation, Type 3, 700MB, 52x, as sold by Verbatim The Premium2 shows slightly higher Focus Error than the Premium. Scans below are: Premium: Disc can not be written at the highest speed. Premium 2: Disc can not be written at the highest speed. PX-760a: Disc can be written at the highest speed. |
| Low speed FE/TE-Test comparison Mitsubishi Chemical Corporation, Type 3, 700MB, 52x, as sold by Verbatim FE/TE-Test run at 4x speed. (PTPXL doesn't offer to slow the Premium 2 to 2x in silent mode. As a side effect this also makes the results comparable.) The Premium 2 shows the best overall results. Scans below are: Premium: Disc can be written at the highest speed. Premium 2: Disc can be written at the highest speed. PX-760a: Disc can be written at the highest speed. |
| Mitsubishi Chemicals Corporation, Type 3, 700MB, 52x as sold by Verbatim PoweRec: ON GigaRec: OFF AMQR: OFF 52x writing speed selected, slowdowns as per writing graph below 8010 total C1 errors. Below are Writing, C1/C2 and Beta/Jitter scans: |
| Mitsubishi Chemicals Corporation, Type 3, 700MB, 52x, as sold by Verbatim PoweRec: ON GigaRec: OFF AMQR: ON 4x writing speed (pre-)selected, no slowdowns 3505 total C1 errors. Below are C1/C2 and Beta/Jitter scans: |
| Mitsubishi Chemicals Corporation, Type 3, 700MB, 52x, as sold by Verbatim PoweRec: ON GigaRec: OFF AMQR: OFF 2x writing speed 87491 total C1 errors. Not a bad result but a notable higher total of C1 errors. Either Super Azo Dye does not really like low speeds or this writing strategy still needs some work. Below are C1/C2 and Beta/Jitter scans: |
| Relations between Jitter and burning speed (Super AZO Dye) Mitsubishi Chemicals Corporation, Type 3, 700MB, 52x, as sold by Verbatim Note: Burns with 32x and 40x speed where done with PoweRec OFF to avoid potential slowdowns in writing speed. Burn 1: Multisession burn with 4 sessions at 2x, 4x, 8x, 16x speeds Burn 2: Multisession burn with 5 sessions at 16x, 20x, 24x, 32x, 40x speeds 2x gives the higher Jitter and C1 errors than higher speeds. Some problem at 40x speed with loads of C2 errors. Apparently the PoweRec decision to limit speed to 32x as in the burn shown 3 postings earlier makes sense. Scan 1: C1/C2-scan Multisession burn 2x, 4x, 8x, 16x Scan 2: C1/C2-scan Multisession burn 16x, 20x, 24x, 32x, 40x Scan 3: Beta/Jitter-scan Multisession burn 2x, 4x, 8x, 16x Scan 4: Beta/Jitter-scan Multisession burn 16x, 20x, 24x, 32x, 40x |
| Cross-Check of high speed burns in a PX-760 Below are C1/C2 scans of the previously posted high speed burns (52x selected) in a PX-760: Taiyo Yuden, Type 1, 700MB, 52x, as sold by Verbatim 1994 total C1 errors. Pretty much the same result as when scanned in the Premium 2. Taiyo Yuden, Type 1, 700MB, 48x, as sold by Plextor 5858 total C1 errors. 3 total C2 errors. Some C2 errors at the outside of the disk compared to the scan in the Premium 2. Sony, Type 6, 700MB, 48x, as sold by Sony 9355 total C1 errors. 2272 total C2 errors. A bit more C1 errors in total but a huge spike of C2 errors compared to the scan in the Premium 2. Ritek, Type 7, 700MB, 48x, as sold by TDK (Metallic) 4809 total C1 errors. Pretty much the same result as when scanned in the Premium 2. Mitsubishi Chemical Corp., Type 3, 700MB, 52x, as sold by Verbatim 1823 total C1 errors. Less errors at the inside of the disk than when scanned with the Premium 2. Last edited by hwp; 21-10-2006 at 10:41. |
| Cross-Check of high speed burns in a PX-760 (Addendum) Since the scan of the Sony disk turned out quite a nasty C2 spike I investigated further. A scan in the PX-716 showed no C2 errors which seemed even more curious. I checked the disk for dirt and scanned again in the PX-760 and there where no more C2 errors this time. Below are scans: Sony, Type 6, 700MB, 48x, as sold by Sony, scanned in PX-716 8566 total C1 errors. Sony, Type 6, 700MB, 48x, as sold by Sony, scanned in PX-760 8094 total C1 errors. |
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| Performance in an external USB2/FW400 enclosure Welland ME340U2F, Prolific 3507 chipset with lastest FW dating from April 2006 Both the Premium and the Premium 2 work nicely in this external enclosure except for one common fault: Audio CD reading is limited. Scan 1: Read transfer rate test, connected via USB2, Speed Read enabled, of an audio CD (42x max.) with the Premium. Scan 2: Read transfer rate test of an audio CD with the Premium 2 (42x max.) and Read transfer rate test of an data CD (52x max). Both connected via USB2, Speed Read enabled. Scan 2: Read transfer rate test of an audio CD with the Premium 2 (29x max.) and Read transfer rate test of an data CD (52x max). Connected via FW400, Speed Read enabled. |
| Taiyo Yuden, Type 1, 700MB, 48x, as sold by Plextor PoweRec: ON GigaRec: OFF AMQR: OFF 48x CAV writing speed selected, slowdown to 32x CLV at the 75 minute position. Testing the new 21-48x CAV writing strategy. 5880 total C1 errors. Below are C1/C2 and Beta/Jitter scans: |
| Mitsubishi Chemicals Corporation, Type 3, 700MB, 52x as sold by Verbatim PoweRec: ON GigaRec: OFF AMQR: OFF 48x CAV writing speed selected, slowdown to 32x at the 57 minute position Testing the new 21-48x CAV writing strategy. 16752 total C1 errors. Below are C1/C2 and Beta/Jitter scans: |
| TDK, Type 5, 800MB, 40x, als sold by TDK PoweRec: ON GigaRec: OFF AMQR: OFF Burn speed selected 52x CAV, writing by PoweRec as per graph below 14773 total C1 errors. Writing, C1/C2 and Beta/Jitter scans: |
| FE/TE-Test comparison Mitsui Chemical, Type 8, 870MB, 99min, 48x, as sold by Primeon Scans below are: Premium 2 scan @ 4x: Disc can be written at the highest speed. Premium 2 scan @ 16x: Disc can be written at the highest speed. Premium 2 scan @ 32x: Disc can not be written at the highest speed. Premium 2 scan @ 52x: Disc can not be written at the highest speed. PX-760a scan @ 48x: Disc can be written at the highest speed. |
| Mitsui Chemical, Type 8, 870MB, 99min, 48x, as sold by Primeon PoweRec: ON GigaRec: OFF AMQR: OFF 52x writing speed selected, PoweRec started writing with 21-48x and slowed to 24x at around the 20 minute position. 19659 total C1 errors, 3 C2 errors. The Premium 2 can read this with (an extended) 21-48x speed whereas the PX-760 is limited to 18-40x. Full speed read in a Liteon LH18a1p too. Below are C1/C2, Beta/Jitter and readback (Premium2 and PX-760, LH18a1p) scans: Last edited by hwp; 27-11-2006 at 19:57. |
| Premium 2 versus DVD-Writers General remarks Since every DVD-Writer nowadays also burns CDs and since some of these DVD-Writers are only half the price of a Premium2, the question arises, if the Premium2 is really is worth it, when it comes to writing CDs. In other words, does it still pay off to use a dedicated CD-only device? The following postings contain comparisons between the LiteOn LH181AP (GL0F), a Plextor 755 (1.07) and a Premium 2 (1.01). |
| Premium 2 versus LiteON LH-181AP Here you'll find a burn of a Verbatim/Mitsubishi http://club.cdfreaks.com/showpost.ph...&postcount=400 and a Taiyo Yuden disc http://club.cdfreaks.com/showpost.ph...&postcount=401 burned in the LiteON LH-181AP with Firmware GL0F. One can see, that the LiteON and the Plextor 755 mostly agree on the total amount and the distribution of the C1 errors. Overall these scans give the impression of two burns well done. But if these two discs are scanned in a Premium 2, a different picture shows: http://club.cdfreaks.com/showpost.ph...&postcount=409 The Verbatim/Misubishi disc starts out with overly high error values (220 C1 errors are the limit set by the CD-standard) and even shows some C2 errors. The Yuden disc does a lot better, but still shows a different distribution of errors with larger values at the start. On a positive note, in spite of higher error valiues, bot discs can be read at full speed in the Premium 2. This is cause for worry, since if these where audio CDs that you intended to use in your stereo, the CD-Reader in your stereo would most likely see these discs similarly like the CD-RW drive and not like the DVD drives. |
| Premium 2 versus PX-755, Part 1: Checking a burn done by the PX-755 Taiyo Yuden, Type 1, 700MB, 52x, as sold by Verbatim burned in PX-755, 48x speed, no slowdowns, PoweRec ON Scans 1 and 2: C1/C2/CU-scans in PX-755 and Premium2 We notice that the Premium2 sees a lot more C1 (48761 vs. 2525) and even some C2 (65) errors compared to the 755. Scans 3 and 4: Beta/Jitter-scans in PX-755 and Premium2 We notice that the Premium2 sees a continually rising Jiter towards the outside of the disc, whereas the 755 is rather the other way around. Also the 755 shows a more regular Jitter. Scan 5: Readback scan in Premium2 While the PX-755 had no problems reading it's own disc at a full 48x the Premium2 had to slow down and did not reach full 52x readback. But we notice that 48x was almost reached before the slowdown. So the quality of the disc would very likely permit 48x reading on the Premium2 too. |
| Premium 2 versus PX-755, Part 2: Checking a burn done by the Premium2 Taiyo Yuden, Type 1, 700MB, 52x, as sold by Verbatim burned in Premium2, 48x speed, no slowdowns, PoweRec OFF since the Premium2 likes to slow down beyond 40x speed. More observations on this later. Scans 1 and 2: C1/C2/CU-scans in Premium2 and PX-755 We notice that the Premium2 sees a trifle more C1 (2318 vs. 1636) errors compared to the 755. The extra amount is due to a slightly raising error rate toward the very end of the disc. Scans 3 and 4: Beta/Jitter-scans in Premium2 and PX-755 We notice that the Premium2 sees a continually rising Jiter towards the outside of the disc, whereas the 755 is rather the other way around. Also the 755 shows a very regular Jitter compared to the Premium2. Scan 5: Readback scan in Premium2 While the PX-755 could read the Premium2s disc at a full 48x, the Premium2 had to slow down at the very end and did not reach full 52x readback speed. But we notice that 48x was clearly passed by the Premium2 and it reached 50x before having to slow down. |
| Premium 2 versus DVD-Writers Interpretation of the results and other ramblings: Media used The Taiyo Yuden media used are sold by Verbatim and seem a bit less good than those sold by Plextor. I chose these deliberately to help make any differencies stand out more while assuring it's not the media that is the issue due to quality variance. PoweRec Disabling PoweRec for the Premium2 burn was mandatory to reach full 48x speed. Otherwise with the current FW and the media used a result like this http://club.cdfreaks.com/showpost.ph...9&postcount=20 would most likely have been the cause. This makes the comparison not entirely fair because it makes it harder for the Premium2. Why no scan of a Premium2 burn in the LiteON? Because the LiteON does things differently than the Plextors and only C1 values are comparable. Since it seems to produce similar results to the 755 for those I saw no point in doing the test. Conclusion IMHO the Premium2 is the better CD-writer when compared to the PX-755 and the LiteON LH-181AP. Here's why: Viewpoint 755: Sees 2525 C1 errors on its own burn and 1636 C1 errors on the burn of the Premium2. Viewpoint Premium2: Sees 2318 C1 errors on it's own burn and 48761 C1 and 65 C2 errors on the burn of the PX-755. Also sees more errors on burns done by the LH-181AP that on it's own burns. Viewpoint LH-181AP: Likes its own burns and burns are likewise liked by the Px-755, but not so much by the Premium2. So the DVD writers 'like' their own burns and the CD-RW drive ones, but their burns are not liked by the CD-RW drive, while the CD-RW likes it's own burns. This makes the CD-RW drives burns overall more compatible. Im under the impression that actual DVD-writers benefit from technologies like 'intelligent tilt' or whatever the modern surface-following/focussing techniques are called nowadays. They allow them to read CD's quite well. While this sounds good in theory i seems to backfire a bit in practice: CD-Writers and readers do not have it. Because of these features DVD-writers can write pretty badly and not even notice it because the burn still looks fine to them (the same writing mechanism is used for read-time reading of the ROPC!). This would be confirmed by the Jitter results (and also the readback curve). The 755 shows more regular Jitter on it's own and on the burn of the Premium2. Whereas the Premium 2 shows worse Jitter in comparison for either burns. Want do discuss this? Please do it here: http://club.cdfreaks.com/showthread.php?t=193782 Edit: For comparison: Similar findings are shown in this test http://plusd.itmedia.co.jp/pcuser/ar...news082_3.html You can translate it with http://babelfish.altavista.com/ |
| Cross check of scanning results Premium vs. Premium2 on above CD-Burns in DVD-Writers Scans below are: Mitsubishi Chem Corp, Type 3, 700MB, 52x, as sold by Verbatim burned in LH-181AP (GL0F) @48x 17623 C1 errors. Taiyo Yuden, Type 1, 700MB, 52x, as sold by Verbatim burned in LH-181AP (GL0F) @48x 11188 C1 errors. Taiyo Yuden, Type 1, 700MB, 52x, as sold by Verbatim burned in PX-755 (1.07) @48x 35395 C1 errors, 10 C2 errors. In all cases the scans of the Premium show somewhat less high error rates than the ones done in the Premium2. |
| Cross check of scanning results Premium vs. Premium2 on above CD-Burns in DVD-Writers Scans below are readback curves for: Mitsubishi Chem Corp, Type 3, 700MB, 52x, as sold by Verbatim burned in LH-181AP (GL0F) @48x No difference to the Premium2. Taiyo Yuden, Type 1, 700MB, 52x, as sold by Verbatim burned in LH-181AP (GL0F) @48x Compared to the Premium2, the Premium shows a minor slowdown at the end. Taiyo Yuden, Type 1, 700MB, 52x, as sold by Verbatim burned in PX-755 (1.07) @48x Similar slowdown pattern like the Premium2 toward the outside of the disc. |
| Cross check Premium vs. Premium2 Burn done in the Premium2 http://club.cdfreaks.com/showpost.ph...8&postcount=77 Taiyo Yuden, Type 1, 700MB, 52x, as sold by Verbatim Slightly higher C1 errors (2651), overall lower Beta, less pronounced variance in Jitter and same readback slowdown. |
| Mitsubishi Chemicals Corporation, Type 3, 700MB, 52x as sold by Verbatim PoweRec: ON GigaRec: OFF AMQR: OFF 40x P-CAV writing speed selected, slowdowns as per writing graph below 15715 total C1 errors. Below are Writing, C1/C2 and Beta/Jitter scans: |
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