[slinkelist] RE: Duplicate disk ID problem
Colby Boles
cboles@nirvis.com
Wed, 22 Dec 1999 13:12:18 -0800
OK. Here's why:
1. CDDB ID uses a hash number based on the playing times of all the tracks
on the CD.
2. Using the info the player provides, the two CDs you own have the same
CDDB ID.
3. When CDJ does CDDB lookups, it also provides all of the individual track
timing info to CDDB, which allows it to do better inexact matching. This is
why CDDB can distinguish the two discs.
4. When CDJ is looking to see if two discs are the same, it only uses the
CDDB ID number, which causes it to mistake the the two discs for each
other. This is a fixable problem, we just haven't addressed it yet.
Colby
At 05:48 PM 12/21/99 -0800, you wrote:
>It may be true that the Sony changer doesn't send all the information
>available on a CD. But the question remains: How come CDDB can get exact
>and correct matches using only the information provided by the Sony
>changer (through CDJ), on two different CDs, but CDJ can't tell the
>difference between these two CDs, using this exact same information?
>
>Dave Hoen
>
>----------
>From: Arnold de Leon
>Sent: Tuesday, December 21, 1999 4:04 PM
>To: Jeff Schaffer
>Cc: Michael Roper; slinkelist@nirvis.com; Dave.Hoen@emulex.com
>Subject: Re: [slinkelist] RE: Duplicate disk ID problem
>
>The fundamental problem is that the Sony changers don't provide enough
>information for CDJ to calculate the full CDDB id. Instead it has to
>use a partial match to get an entry.
>
>This is the same reason that CDJ doesn't have the option for submitting
>entries into CDDB.
>
> arnold
>
>On Tue, Dec 21, 1999 at 10:51:31AM -0500, Jeff Schaffer wrote:
> > I tried the straight copy, and it worked! Still a hassle, and now I
> > have my Solid Colors original laying around, but I can get to both
> > CDs via slinke!
> >
> > >Jeff, David suggested just burning a straight copy of one of the discs.
> > >This worked great for my situation. I didn't have to futz with altering
> > >track times or anything--just did my usual automagic digital source
> > >record and the timings are just different enough to resolve the conflict
> > >with CDDB. I also didn't need to do anything manual--the disc simply
> > >came up as an "inexact match" but as the correct album. I picked one of
> > >the offerings and from there it worked just like every other CD in my
> > >collection.
> > >
> > >I'm guessing that "adding a few seconds" to one of the tracks is not
> > >necessary and is in fact why your friend didn't get a hit on CDDB.
> > >
> > >-----Original Message-----
> > >From: Jeff Schaffer [mailto:jschaffe@mail1.nai.net]
> > >Sent: Monday, December 13, 1999 7:58 PM
> > >To: Michael Roper
> > >Cc: slinkelist@nirvis.com
> > >Subject: [slinkelist] RE: Duplicate disk ID problem
> > >
> > >
> > >No, I never got a response from Nirvis, although I sent a repeat to
> > >slinkelist about 4-6 weeks ago. There was one early reply from
> > >someone who made a copy of the cd but added a few seconds to one of
> > >the songs, making the copy cd a different length so CDJ would see it
> > >as a different disk. He had to manually type in the titles, though.
> > >
> > >Nirvis, any help here?
> > >
> > > >Hi Jeff. Did you ever get a decent solution to this problem? I've run
> > > >into the same thing with two other CDs.
> > > >
> > > >Michael Roper
> > > >michaelr@encraft.com
> > > >
> > > >-----Original Message-----
> > > >From: Jeff Schaffer [mailto:jschaffe@mail1.nai.net]
> > > >Sent: Monday, April 19, 1999 7:20 PM
> > > >To: slinkelist@nirvis.com
> > > >Subject: Duplicate disk ID problem
> > > >
> > > >
> > > >Hello,
> > > >
> > > >I've got two CDs (Liz Story/Solid Colors and The Oscar Peterson Trio
> > > >+ 1: Clark Terry) that each have 10 tracks and are the same total
> > > >length (40:52). CDJ gets them confused, but if I delete both from
> > > >the library, it can successfully look up either disk from CDDB. I
> > > >saved one entry (in text form), deleted it, looked up the other
> > > >disk, and pasted (text) the first entry back into the library file.
> > > >Now I get a duplicate disk ID error when I start CDJ. (Basically
> > > >seems to work, but I can only play one of the conflicting disks).
> > > >
> > > >Any suggestions?
> > > >
> > > >Thanks,
> > > >Jeff
> > >
> > >
> > >
> > >_______________________________________________
> > >slinkelist maillist - slinkelist@nirvis.com
> > >http://www.nirvis.com/mailman/listinfo/slinkelist
> >
> >
> >
> > _______________________________________________
> > slinkelist maillist - slinkelist@nirvis.com
> > http://www.nirvis.com/mailman/listinfo/slinkelist
>
>--
>Arnold de Leon WebTV Networks, Inc.
>arnold@corp.webtv.net 305 Lytton Ave.
>+1 650 614 5538 Palo Alto, CA 94301
>
>
>
>_______________________________________________
>slinkelist maillist - slinkelist@nirvis.com
>http://www.nirvis.com/mailman/listinfo/slinkelist
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