Topic: Track times off by a second from CD case and Amazon - problem, or not?
I was recently looking over a release I submitted to MusicBrainz a few years ago: http://musicbrainz.org/release/c1e0294e … 30048784fe , and wanting to clean it up a bit to bring it up to NGS standards of quality. The first thing I did was search for it on Amazon to see if there was an MP3 release I should add. I found it at http://www.amazon.com/gp/product/B00370C7YW -- but then I noticed something. The times that Amazon lists for each song are slightly off from the times that I listed when I first created the release entry. A few songs match, but most are off by about 1 second, in a consistent direction: if the times are off, then the Amazon-listed time will be 1 second less than the time I entered. (E.g., I listed track 2, "Tom Bombadil", as 4:44 long, but Amazon lists it as 4:43 long.)
I don't remember where I got the track length info back in 2009 when I submitted the release, but it was probably from the back of the CD case. My question is: should I update the track length to match what Amazon is showing? Which is more likely to be correct: the info from the CD case (presumably entered by the artist) or the info from Amazon (presumably entered by software that measured the length of the corresponding MP3)? And if I've gotten the times slightly wrong, what will that do to CD ToC-matching algorithms: will they be able to adjust to a one-second-off difference on most tracks, or is that likely to lead to someone putting their CD in the drive and having Picard (or another MB-enabled tagger) tell them "I don't recognize that disc, it must not be in the MB database"? Sadly, I don't have my CD of this release around at the moment, so I can't test that last question for myself.
Actually, that's more like three questions. Basically, I think I'm asking: should I worry about this, or not?