Manually forcing a single disc of a two-disc-plus album

[craigbox]

I have a copy of "The Essential Michael Jackson" (http://musicbrainz.org/release/f890ca09-0b44-4539-ae13-238266b242fa) which is being half-detected:

Current possible releases:
 The Essential Michael Jackson (disc 2) (tracks found: [1-10,12-17])

However, if I try and force it with -r f890ca09-0b44-4539-ae13-238266b242fa:

Exception: len(self.tracks) 17 != len(mb_tracks) 38

(I have handily added the lengths to that exception output to debug.)

There doesn't seem to be a parameter for forcing a single disc of a two-disc (or more) MB album. Is this the case?

[alastair]

Interesting. Looks like it's caused by the "2 cd pack is 2 releases in mb1 but 1 release in mb2". Easiest fix is "wait for NGS support" I think :(
I'm surprised that the output says "The Essential Michael Jackson (disc 2)" - looking up the release id you've given on the webservice only shows the title as "The Essential MJ" (no disc part). Is there a different release id that is getting spat out earlier?

[craigbox]

I didn't see one - albumidentify tends to overwrite text on the same line,
so it's possible there was one, but I tend to catch that kind of stuff when
it runs.

On 8 August 2011 02:47, alastair <
reply@reply.github.com>wrote:

Interesting. Looks like it's caused by the "2 cd pack is 2 releases in mb1
but 1 release in mb2". Easiest fix is "wait for NGS support" I think :(
I'm surprised that the output says "The Essential Michael Jackson (disc 2)"

• looking up the release id you've given on the webservice only shows the
  title as "The Essential MJ" (no disc part). Is there a different release id
  that is getting spat out earlier?

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#85 (comment)

[shweppsie]

Yer I'm getting that a lot too. I'm just waiting for NGS support.

[alastair]

Looking at the webservice output (http://musicbrainz.org/ws/1/release/f890ca09-0b44-4539-ae13-238266b242fa?inc=tracks)
it looks like there is no way to split NGS releases up into >1 CD using /ws/1
I think we're going to have to fold this into "make stuff work on NGS"

[craigbox]

Nice work, thanks guys!

[scottr]

Oops wrong issue id in commit message, sorry.

[scottr]

I've been trying to figure out how to improve the situation with /ws/1... there are a number of issues since MB moved to NGS.

In this particular case, when you lookup releases by discID, (not release id) MB returns just the tracks that match the disc (even though it's the same "release" as both CDs). This means we can successfully rename multi-disc sets assuming you're matching on discID. HOWEVER: /ws/1 doesn't return the disc number, so renamealbum fails on the second disc as it doesn't know its dealing with a multi-disc set, and so doesn't name the dest directory with "disc 1", etc. This causes the second disc to fail as it has already moved the first disc into place. Sigh.

Will keep looking...

Here's an example of the /ws/1/ output when searching for the discID of the second disc of "Stadium Arcadium":

http://musicbrainz.org/ws/1/release?discid=GO0PVBmjnVOrn2AWdXVm2_dCyPY-

[scottr]

It doesn't look like there's a way to go backwards once you have the releaseID from the discID to figure out which disc of the release the discID represents. Sigh.