problems with DVD drive

[QR_prose]

On my Gigabyte EP45-UD3R motherboard I have one SATA hard drive with Ubuntu Linux(kernel 2.6.27).
Also, I have and IDE DVD rom drive. I have two and tried both. I can only copy micro sized file off of disks.
Any thing bigger than about 1 meg fails. I then see the follow kernel message.

[47350.799713] end_request: I/O error, dev sr0, sector 15903612
[47350.799722] __ratelimit: 290 callbacks suppressed
[47350.799726] Buffer I/O error on device sr0, logical block 3975903
[47350.799733] Buffer I/O error on device sr0, logical block 3975904

[Dizzle7677]

Try different BIOS DMA settings for the controller the DVD is on from Auto(if it's that way) to UDMA2,etc. Could be the 40/80 pin cable also.

See Post (https://answers.launchpad.net/ubuntu/+question/10811)