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libcdio / libcdio-paranoia

CD paranoia on top of libcdio
GNU General Public License v3.0
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Transport error when using --force-overread #17

Closed jtl999 closed 5 years ago

jtl999 commented 6 years ago

Drive: Samsung SH-S223L (flashed patched firmware years ago to remove DVD region code and riplock)

OS: Ubuntu 18.04 running in an LXC container due to avoid dependency problems on host, block device passthrough, this works.

CD tested: Mark O'Connor "Heros"

I use whipper to rip the CD's, but when testing the overread feature, after the last track of this disc, it would get stuck at ripping stage at 99%. I manually ran cd-paranoia with the same arguments as whipper used and it does rip the selected portion of the disc and then spits out "transport error" at the end.

Here was the command ran.

cd-paranoia --stderr-progress --sample-offset=6 --force-overread --force-cdrom-device /dev/sr0 14[00:00:00.00]-14[00:08:01.74] /tmp/tmpqeDioy.whipper.wav

If I remove the sample-offset there is no more transport error, but this imply anything useful?

Or is this whole issue implying my drive doesn't support --force-overread in the first place?

Thanks.

rocky commented 6 years ago

In issue #14 someone else reported a problem in using --sample-offset, and I think there is a problem in using --force-overread with --sample-offset.

That said, I really don't have a clue as to what the right thing to do here is. @enzo1982 @eshattow @a10footsquirrel ?

jtl999 commented 5 years ago

After much more reading...

Appears to some other sources the SH-S223X series of Samsung/TSSTCorp drives don't support overread, so if that's the case then I doubt libcdio-paranoia will be of help here.

rocky commented 5 years ago

Is there a way to detect whether a drive supports overread? Perhaps there is a MMC command you can send to the drive to have it report that it supports or doesn't support overread?

jtl999 commented 5 years ago

Don't know but there should be a way to detect if a drive supports overread in some form (EAC does it)

I know with the EAC tests for HTOA (similar) a yes is a maybe, a drive can return silence for a non-silent HTOA on a disc and EAC interprets it as supporting reading of HTOA but a no is a certain no.