Hi, > It seems to depend on the medium and readability.
That's interesting. I've only tried with audio CD's and commercial DVD's. > I can read a DVD+R just fine, but a real data CD (not CDR) fails with: > and a commercial (movie) DVD > > fails similarily: > > aceride0:1:0: lost interrupt > aceride0:1:0: bus-master DMA error: missing interrupt, status=0x21 > Sounds more like bugs in the aceride driver to me (or missing workarounds for > chip bugs), and that is where I would put hacks like "do not use dma for CD > like drives" too. If I recall correctly, we've had problems reading CD's and DVD's on aceride starting with V100's. It probably is a problem in the driver. In the past, I'd looked at the FreeBSD and Linux drivers, and made some local changes. However, they didn't fix things for me, so I didn't commit. I'll have another look and see what I can find. I'll look for some other media types too. Regards, Julian