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18 Sep 07 - 12:46 PM (#2151952) Subject: Tech: CD data From: Trevor I've just ripped a CD on to my laptop, through Windows Media player, and the data that automatically attaches itself is for a completely different album. No great shakes, but I'm just interested as to how that may have happened. Any ideas? (The album was, Tooled Up, by The Spookie Men's Chorale, and the data was for Painted Lady by Jon Boden) |
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18 Sep 07 - 01:20 PM (#2151982) Subject: RE: Tech: CD data From: MMario I think windows media player searches some database and pops in the closest it can find to what you are ripping; never mind that it isn't right. Hey - it's a microsoft product - this is a "feature" |
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18 Sep 07 - 01:59 PM (#2152019) Subject: RE: Tech: CD data From: treewind I think it works by matching the lengths of all the tracks. I also believe that pressed CDs have a serial number embedded in them that positively identifies the recording more reliably. CDDB (now Gracenote) isn't a Microsoft product. They apparently use "audio waveform fingerprint technology" so I could be wrong about track lengths. It's not the first time I've heard of it getting it completely wrong. Anahata |
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18 Sep 07 - 02:16 PM (#2152029) Subject: RE: Tech: CD data From: GUEST,Jonny Sunshine Yes, most likely it's looking up the Gracenote CD database, which compares the table of contents (TOC) contaning the track times to its database. This is usually enough to identify any album, though less reliable when it comes to singles or EPs Most commercial releases have an ISRC number which identifies each track positively (don't know how that works with albums), which is handy for radio stations as they can log airplay automatically. But Gracenote doesn't use that as yet. Using the TOC means pretty much anything can be added to the database, some media players (iTunes for one) allow you to submit this information yourself. |
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18 Sep 07 - 02:23 PM (#2152034) Subject: RE: Tech: CD data From: MMario Windows media player is what I meant was a Microsoft product. |
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19 Sep 07 - 03:28 AM (#2152446) Subject: RE: Tech: CD data From: treewind Yeah, I know. I was assuming the mistake was at the database end of things. The media player doesn't have to do very much - just send a few simple parameters to the database and report what's sent back. Hard to get wrong, but as you say, it's Microsoft... anything could happen! A. |
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19 Sep 07 - 05:10 AM (#2152479) Subject: RE: Tech: CD data From: Joe Offer Hi, Trevor - while it's playing, right-click on the icon for the album and select "find album information." Windows Media Player should then search the Internet for possible replacement information. -Joe- |
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19 Sep 07 - 05:18 AM (#2152482) Subject: RE: Tech: CD data From: Trevor Thanks for that. Joe, I did that - when I answered 'no' to the 'is this your CD?' prompt, it went straight to the 'edit' facility so I was able to put the correct data in. Interesting. |
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19 Sep 07 - 05:45 AM (#2152485) Subject: RE: Tech: CD data From: GUEST I've had quite a few problems like this in ripping CDs. Many it just doesn't find, which is fair enough considering the obscurity of some of my CDs. I'm most puzzled by some albums where it is obviously bringing up the correct CD but with tracks in the wrong order or with/without some tracks or spelling mistakes. Some of this I presume is due to CDs being released with different tracks or track order in different countries but the spelling mistakes lead me to think that sometimes the first person to enter the CD details when the CD is being ripped (which then seem to get uploaded somewhere) and mistypes (or even puts the wrong CD information on) mucks it up for others that follow. |