Thinkpad R51 DVD Multi compatibility

Hi,
I’ve got a thinkpad R51 that came with the dreaded uj811b, which a month or two ago stopped writing to cds. After reading about the issue online I decided to replace it. Had lots of fun trying to figure out what drives would work in its place. Ended up buying a used Ibm LG drive the Gma-4082N. Works great, except it periodically causes a stop error, forcing XP to reboot. I don’t know at this point if I got a drive that is bad or if it isn’t compatible with my machine in the first place.

IBM is little help, they do not have a published list of compatible drives online, and their tech support people don’t seem to know much. When I ask them for a list of compatible drives, they either refer me to the uj811b or the uj830. The UJ 830 might work, but in the forums it seems to have issues as well, so I’d love to have more options if indeed it’s a compatibility issue with my gma 4082n.

Any help is much appreciated.

Most laptop drives are fairly standard as long as they are not the the super slim ones like on the T series. The problem with ThinkPads is making it fit due to the eject mechanism. I used a N100 which had the 4082 drive. I had fairly good luck with it. Perhaps the your drive is defective. You might want to try some different software or discs. Was there particular error message you were getting. Most laptop drives aren’t that great anyway. I do most of my burning on the 1620 which offers much better speed and quality though I understand it is not very portable. My UJ-850 works as on occasional burner.

Thanks for helping me in my ignorance. I am still under 90 days warranty on the 4082, so I may be in luck if it’s the drive. I’m glad to know that if it fits the bay it ought to work, as that simplifies replacement. I’ve not read any really stellar reviews of laptop drives, but portability outweigh performance for me for the moment, so I’m hoping to get this resolved.

The error screen goes by quickly, but it simply calls it a ‘stop error’ which I guess is synonymous with blue screen. I can look it up in the event viewer, and I’ve pasted what I get at the bottom–it’s not much help to me.

Interestingly in the event viewer there is a whole string of cdrom errors a little while before the one of the reboots saying “The driver detected a controller error on \Device\CdRom0.” Before another there’s a string of cdrom errors complaining that the drive has a bad sector. And it appears I only have these two blue screens in the event viewer to look at.

The drive is used most often by my backup software (synchback free) to write zip files of data using DLA to a DVD-RW (office depot’s brand). The blue screens often seem to happen shortly after waking from suspend, although not always. I do always notice some activity on the drive before the blue screens, however, even if I can’t figure out why the system would be trying to access the drive at that moment.

pasted error info

0000: 53 79 73 74 65 6d 20 45 System E
0008: 72 72 6f 72 20 20 45 72 rror Er
0010: 72 6f 72 20 63 6f 64 65 ror code
0018: 20 31 30 30 30 30 30 35 1000005
0020: 30 20 20 50 61 72 61 6d 0 Param
0028: 65 74 65 72 73 20 66 39 eters f9
0030: 35 66 65 35 64 32 2c 20 5fe5d2,
0038: 30 30 30 30 30 30 30 30 00000000
0040: 2c 20 38 30 35 31 36 32 , 805162
0048: 61 61 2c 20 30 30 30 30 aa, 0000
0050: 30 30 30 30 0000

the accompanying save dump msg says,

The computer has rebooted from a bugcheck. The bugcheck was: 0x1000000a (0xfcf694ce, 0x00000002, 0x00000001, 0x804dc11d). A dump was saved in: C:\WINDOWS\Minidump\Mini112607-01.dmp.

I’ve not tried to decode the minidump file.

DLA is the root of your problems!

I’d agree most packet writing software is flakey. If you are not using it, I’d dump it.