Bug#282670: Package: installation-reports
> After selecting language etc. the installer quits with message stating wrong
> cd or can't read from cd. This is an ongoing problem inherent to previous
> installer cd's. I've tried them all. Going to a shell prompt, the cd is mounted.
> This is not a cd read/write problem. Multible cd's tested. The installer
> appears to "lose" the cd at this point i.e. it cannot be tested and the only
> thing to do is abort.
I think this might be a problem that at root is due to some CDROM drives
not working well with DMA access to them turned on in the kernel. It seems
to happen with Dells quite a bit.
Have a look at bug 265636, are the symptoms similar?
It would also help to send (to email@example.com) the logfiles from
your install (there is a save logs step in main installer menu) and the
output of (lspci -n; lspci)|sort