Comment 7 for bug 222176

I have the same problem!

The configuration of my PC is
Motherboard: Asus A8N-VM CSM
HDD: 2 WD HDs (both of them are ATA)
and the DVD writer is also ATA
No sata device

At first, I upgrade my system from 7.10. But I found that, after the upgrade, the DVD writer cannot read almost all CD-R, while those discs can be read properly under Windows. So, I can sure that those CD-R are readable. Also, if I mount the CD-Rs manually, say
sudo mount /dev/cdrom1 /media/cdrom0 -t iso9660
it reported that I used a wrong type to mount.

After, I try to format the partition and install 8.04 from the live CD. However, whenever I booted from the live CD, the system stopped at "busybox".

I guess these two problem are related, just like what bertm suggested, it seemed that the system cannot found the live cd.