[ritdog]

I am running a homebuilt machine that has been working very well for the last 2 years . Last week, after some SP2 updates, it started to tank: the DVD reader bogs down and stops. I have many, many, DVDs written in Creator Classic that are no longer readable. Upon insertion, the DVD spins up, and the file list appears. At this point, you can see the file list in Explorer, or click on thumbnails to see the thumbnails. About 25-30 thumbs load up, and then the drive slows WAY, WAY down and finally just surges- starts to launch, then stops, starts, stops, etc. Essentially, the first 50 meg of a 4 gig disk is accessible, and that's all. DMA settings are OK. Drivers are OK ( uninstalled and reinstalled) all software is updated. Reinstalled XP. CDs work fine. VIDEO DVDs work fine. They always did. It's the data DVDs that don't work. SO: after 10 days of working on this , I found reference to DVDs being written in UDF102 being unavailable after an SP2 update. Tried burning a Joliet disk, and that takes off like a rocket. THE PROBLEM : is I still have those 300 DVDs in UDF to access, and I am wondering if anybody out there might have an answer!

[cdanteek]

I am running a homebuilt machine that has been working very well for the last 2 years . Last week, after some SP2 updates, it started to tank: the DVD reader bogs down and stops. I have many, many, DVDs written in Creator Classic that are no longer readable. Upon insertion, the DVD spins up, and the file list appears. At this point, you can see the file list in Explorer, or click on thumbnails to see the thumbnails. About 25-30 thumbs load up, and then the drive slows WAY, WAY down and finally just surges- starts to launch, then stops, starts, stops, etc. Essentially, the first 50 meg of a 4 gig disk is accessible, and that's all. DMA settings are OK. Drivers are OK ( uninstalled and reinstalled) all software is updated. Reinstalled XP. CDs work fine. VIDEO DVDs work fine. They always did. It's the data DVDs that don't work. SO: after 10 days of working on this , I found reference to DVDs being written in UDF102 being unavailable after an SP2 update. Tried burning a Joliet disk, and that takes off like a rocket. THE PROBLEM : is I still have those 300 DVDs in UDF to access, and I am wondering if anybody out there might have an answer!

Xp has it's own UDF reader. You say you burned them in Creator Classic, are you sure about that? What media type DVD + - R/RW?

Download the program below. Have it look at the disc and tell use what format the disc is in.
IsoBuster 2.3, DVD, CD, BD and HD DVD recovery software

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[ritdog]

Disks are memorex DVD+R Been using them for 3 years. I burn about 500 a year.

Ran Isobuster, and I get one track with 3 sections, all have the same file number : 071230_1029

the red ISO block section has all files listed, and is 9660

the blue block with the >>>> in it has all the same files and is Joliet

the green UDF block has all the files and is UDF

Roxio Easy CD creator is the only burner I've ever used- 5 was a little problematic , but I stuck with it. 7 has been working great till now- actually, the burning is not the problem- it's the reading. Again, that UDF thing with SP 2.......

seeing all 3 formats here, I am unsure of what you are asking for in "format"

thanks a lot! I have seen your avatar before, and you seem to know what you are talking about.

[cdanteek]

seeing all 3 formats here

I have not seen that before, but I haven't looked at many data disc's in IsoBuster. I'm not sure Creator Classic offers all three for one burn project?

Does it show the whole DVD? Right click on your files left side, folder tree and file information, list files with read errors. Right click on your files left side, Check if files are physically readable. I think the free version lets you do that.

Another thing once XP OS hits a data transfer error it will start stepping down DMA modes and end up on PIO, read #3 in my signature.

For repeated DMA errors. Windows XP will turn off DMA mode for a device after encountering certain errors during data transfer operations. If more that six DMA transfer timeouts occur, Windows will turn off DMA and use only PIO mode on that device.

Try reading the disc's in another XP machine if possible?

Can you capture a screen image, upload it to your web-space. Then insert the image in the post tool bar 'insert image'?

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[Brendon]

ISOBuster looks at it all three ways, and shows three sets of results.