Extremely slow DVD read

vbimport

#1

Hey everyone,

I copied the contents of 4 CDs (Installation for WoW Burning Crusade) to a single DVD-R to make installation easier. When I install the game expansion from the DVD-R, the read time is very, very slow. It’s been running for about 15-20 minutes now and is only 40% complete (there’s a total of about 2.2GB of data). When I install from the CDs, the entire process takes maybe 10 minutes.

One thing I have noticed is that when I use the CDs, the discs are spinning much faster than the DVD currently is. In fact, I wouldn’t suspect the drive was operating at all if it weren’t for the light on the front (it’s that quiet right now).

Any ideas why the read speed would be so low? Could it be the media? I’m using Ritek 8x DVD-R media burned @ 8x using Nero 6.

I should mention that I’m attempting to install (read) from my NEC 3520-A burner. Now that I think about it, something regarding riplock comes to mind…

Thanks!


#2

Welcome to the forum :slight_smile:

Ritek media are not the very best quality discs. If a disc contains a errors, to be read the drive must slow a bit. If the drive slows heavily, then it’s probable that the disc contains a lot of errors.

Check your disc with cd-dvd speed: insert that ritek disc, select the Benchmark tab, and then the menu Run test --> Transfer rate.

Can you post the picture here?


#3

Thanks for the reply! I’ll be sure to benchmark and post the results once this install finishes. It’s still running and @ 68%… lol.

I may also try burning the disc at a slower speed to see if that makes a difference.


#4

You’re welcome :slight_smile:

I suggest to buy better quality discs. Ritek are not the very best, but slowing a bit the burning speed is a good idea :slight_smile:


#5

Heh, now you tell me. I have about 100x more of these discs left. Any suggestions on what ARE good discs (i.e. what do you use?)

I’ve attached the results from the tests. Turns out these are DVD+R discs, not DVD-R as I originally thought. I buy whichever is cheaper at the time.

The first test was performed on the DVD+R disc that I’m having trouble with. The results:

Nero CD-DVD Speed: Disc Info
Basic Information
Disc type: : DVD+R
Book Type : DVD+R
Manufacturer: : Ritek
MID : RITEK R03 002 (02h)
Write speeds: : 2.4 X - 4 X - 6 X - 8 X
Blank Capacity : n/a
Extended Information
Layers : 1
Write strategies : 4 X
Disc Status : Closed
Raw Data
Physical Format Information (00h)
0000 - A1 0F 02 00 00 03 00 00 00 14 C3 1F 00 00 00 00 - …
0010 - 00 00 03 52 49 54 45 4B 00 00 00 52 30 33 02 38 - …RITEK…R03.8
0020 - 23 54 37 20 00 5D 6C 00 B2 67 15 15 0B 0B 08 08 - #T7…]l…g…
0030 - 01 19 1B 0C 0C 0C 0D 01 00 00 00 00 00 00 00 00 - …
0040 - 01 00 38 38 00 31 66 1C 06 2E 23 10 04 1E 1D 01 - …88.1f…#…
0050 - 00 00 00 31 66 1C 06 2E 23 10 04 1E 1D 01 00 00 - …1f…#…

The second test was performed on the original pressed DVD-ROM of the WoW install disc:

Nero CD-DVD Speed: Disc Info
Basic Information
Disc type: : DVD-ROM
Capacity: : 2.86 GB
: 2926 MB
: 3068788736 bytes
Extended Information
Layers : 1
Copyright protection : n/a
Region(s) : All
Raw Data
Physical Format Information (00h)
0000 - 01 02 01 00 00 03 00 00 00 19 DD 3F 00 00 00 00 - …?..
0010 - 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 - …

During the test, the drive was “spun up”, but it was not during the install of the app. Could this be because the install is broken into 4 very large (600MB or so) files and it would only spin up to improve seek times for large # of files? The install from the original WoW DVD seemed pretty slow as well. DMA is enabled on the IDE channel that the DVD drive is on:


#6

hmm the disc seems burned ok, because the TRT is good.

Probably the installation is really slow because it require to uncompress files from the DVD to the HDD, and this is a CPU consuming process and not related to the drive.


#7

Maybe. Although that doesn’t explain why the CDs are so much faster. Or maybe it just seems like they are since there are 4 of them… maybe I’m crazy. :slight_smile: The biggest thing that concerns me is the fact that the drive doesn’t sound “spun up” when using the DVD, but it does with the CDs. It will spin up if I copy the files directly from the DVD to the harddrive. The transfer rate is very fast.

Who knows. Thanks for the help!


#8

You’re welcome :slight_smile:


#9

Although its not really related to your issue, remember that for X amount of data transfer speed, DVDs will spin about 5x slower than CDs, as the data is more compacted on the disc surface.

If the game installer is maxing out your CPU with your CD’s spinning at full speed, the same data rate off the DVD would result in the DVD spinning noticeably slower.