This might seem like a long post, but I tried to be as non-newb as possible (although I am, when it comes to DVD burning) and include as much information as I could get. I’d really appreciate it if someone might take a moment and let me know what he/she thinks.
I made about half a dozen burns using Nero 126.96.36.199, some of them data, some of them DVD backups, and everything seemed fine – played in DVD player, passed Nero’s verify, etc. However, being just a little paranoid about the longevity/quality of my backed up data (especially since there’s so much of it per disc), I decided to start checking using Nero CD/DVD Speed & DVDInfoPro since I can’t use Kprobe with my NEC.
A couple of burns gave read errors towards the end of the disc, but were otherwise read fine by my DVD player and my DVD-ROM (I tried transferring all the files back to my HD). All of the others gave graphs that looked like this:
where it takes a sharp dip towards the end. Has anyone else gotten something like this? I know these results are definitely not typical, since most of the other curves I see end nicely around 8X with a flat line. Also, I checked using DVDInfoPro, which I’ve read was supposed to be pretty definitive, and got thousands of read errors:
Yet it still works fine (tried copying the files and everything). However, CD/DVD Speed’s Scandisc didn’t seem to pick up on anything:
I checked a retail DVD movie (‘Basic’) to see if it would do the same, but since it’s a dual layer, the CAV curve goes up and then down in CD/DVD speed, so obviously I wasn’t able to notice any sharp drops in speed, since it slows down to the starting speed:
Similarly, I tested this with DVDInfoPro, and again got read errors by the thousand. Both discs work, and this is store bought, so I’m not sure how much I believe these results… ::scratches head::
And with CD/DVD speed scandisc, again, error-free:
I’m going to try doing some more tests later this weekend when I’m around, defrag my HD’s, burn onto these Memorex DVD+RW’s that I got, and maybe change the IDE cable, to see if any of those do anything.
In the meantime, can anyone help me figure out what the problem is? I’ve searched around without finding any really similar situations, and I’d like to think that I’m just being paranoid, but these results make me pretty wary. Is my drive defective? Are RiData G04’s THAT bad? (I saw a lot of good reviews of it on Newegg, some with the ND-2500A burner) Please let me know if you have any suggestions/insight!! Thank you very much.
Here’s the hex dump of my Ritek G04’s using DVD Identifier:
0000 : 01 40 c1 fd 9e d8 52 00 02 76 0e 14 88 9a 80 00 .@…R…v…
0010 : 03 52 49 54 45 4b 47 00 04 30 34 00 00 00 00 00 .RITEKG…04…
0020 : 05 88 80 00 00 00 01 00 06 08 12 11 86 67 80 00 …g…
0030 : 07 88 80 00 00 00 00 00 08 05 1b 0e 10 08 09 00 …
0040 : 09 97 06 0d 0b 80 00 00 0a 00 00 00 00 00 10 00 …
0050 : 0b 04 1d 18 a8 88 85 00 0c 89 ac 88 80 00 00 00 …
I noticed something odd (Incorrect Descriptors??) under “Drive Capabilities” with DVD Identifier – it’s probably nothing, but here it is anyway:
** INFO : MODE SENSE Write Speed Descriptor(s) [Legacy Command]
Descriptor #1 = 5645 KBPS ( 4.00x) - [CLV/Non-Pure CAV]
Descriptor #2 = 4234 KBPS ( 3.06x) - [CLV/Non-Pure CAV] - [Invalid Entry]
Descriptor #3 = 3528 KBPS ( 2.55x) - [CLV/Non-Pure CAV] - [Invalid Entry]
Descriptor #4 = 2822 KBPS ( 2.00x) - [CLV/Non-Pure CAV]
Descriptor #5 = 1411 KBPS ( 1.00x) - [CLV/Non-Pure CAV]
Descriptor #6 = 706 KBPS ( 0.51x) - [CLV/Non-Pure CAV] - [Invalid Entry]
** WARNING : Drive May Have Returned Incorrect Descriptors