[mythtv] [mythtv-commits] Ticket #1892: DVD Detection Problem

Michael T. Dean mtdean at thirdcontact.com
Mon May 29 16:02:11 UTC 2006

On 05/29/2006 11:32 AM, Matthew Wire wrote:
> On Mon, 2006-05-29 at 11:12 -0400, Michael T. Dean wrote:
>> On 05/29/2006 10:54 AM, MythTV wrote:
>>> #1892: DVD Detection Problem
>>>  DVD detection is not working for dvd's that have a lower case video_ts
>>>  directory.
>> Any DVD with all lowercase audio_ts and video_ts is mounted incorrectly 
>> (as an iso9660 filesystem) and is, therefore, not a valid DVD and should 
>> not be treated as one.  You must mount your DVD's as udf filesystems or 
>> they will be treated as data.
> OK. Sorry about that, I should have checked the previous tickets more
> thoroughly.

No apologies necessary--after all, your intentions were good.  As you 
may have noticed from three separate almost-instantaneous responders to 
your patch, it's an easy one to identify as invalid, so it doesn't take 
a lot of people's time.  :)

> Could you explain for me why dvd's must be mounted as udf and why it is
> a problem if not?

DVD specification...  I would say (although it's never really been 
explicitly said) Myth doesn't want to encourage users to configure their 
systems improperly because the consequences of the improper 
configuration would then be partially Myth's fault.

> As mentioned in another post my fstab line is setup with udf,iso9660 as
> the default filesystem but all my discs get mounted as iso9660.  If I
> set the fstype to auto the same thing happens.
> The only way to get udf is to set fstype explicitly to udf.  But this is
> not a solution, since my system is then unable to mount any cd's or data
> dvd's.
> (Note, I've tested this with a variety of dvd and cd formats).

Unfortunately, how your DVD's are mounted is a distribution-specific 
issue.  Therefore, your best bet is to find a forum/mailing list/guru 
for your distribution (Knoppix, Gentoo, Fedora Core, ...) to help you 
figure out how to configure your system properly (or, fix the 
distribution's improper configuration).


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