Re: 2.6.0, cdrom still showing directories after being erased

[John Bradford]

> > > > I.E.
> > > >
> > > > mount disc
> > > > view contents
> > > > unmount disc
> > > > erase disc - but don't erase the CD-R drive's cache of the media
> > > > mount disc
> > > > view old contents of the media from the CD-R drive's cache
> 
> That's it exactly.
> 

[snip]
> > > 
> > > If that's the case, the drive is broken.  We can't help that.
> 
> That's possible, it's a cheap combo from LG. I have even seen it on the
> list of droken drives (the ones that died trying to install mandrake)
> [http://archives.mandrakelinux.com/expert/2003-10/msg02116.php], even
> though it's a CDRW.
> 
> It that case sorry for bothering you with crappy hw problem.
> 
> > 
> > Is it actually a requirement for drives to support anything other than
> > a full erase properly?  Is the 'fast' erase valid per spec, or does it
> > just happen to work on 99% of devices?  Is this problem reproducable
> > if a full erase is done instead of a fast erase?
> 
> Yes, it is:

[snip]

> Could it be also cdrecord problem? Couldn't cdrecord execute some command
> to flush the cdrom's cache after erasing?

Jens said there was no specific command to do this in another post,
although I would have thought that a generic device reset command
should clear the cache, but be sub-optimal for devices which clear the
cache themselves on an erase.

Regardless of specs, I don't know what the majority of devices in the
real world actually do.  Maybe Jens and Alan, (cc'ed), can help.

John.
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