I posted this on the LP site in my sig too but just thought I'd put it here as well, you may agree/disagree but I'm sick of seeing some of these things as they really aren't "offical LP media" : Some remixes: Any person with a music editing program can take a song, warp the volume a few times and call it "Joe's supermix", it doesn't take much talent and these songs shouldn't be included. Some DJs like to remix too but unless it's an official remix released by LP (example would be the Crystal Method Remix Of "Points Of Authority") it isn't wise putting this on your lists. LP covers by obscure artists: Some LP covers are really good and others...well. but of course that varies from listener to listener. The point is it's nearly impossible to collect all these (especially the ones from bands no one has heard of) so it's a losing battle overall but a few covers here and there are worth hearing and keeping, use your own discretion with what you keep though. Instrumentals!!!: Okay, these are great for karoake and impressing people with how well you know the words but that's about all they should be used for. Not much talent is required in stripping a song of words and putting it in your collection as a "rare instrumental." So again not a good idea to include in any serious collector's lists. The rare demos you think you may have but...: This is something I see a lot of, people download say "Plaster" off Kazaa and put it all over the place that they have found the rarest LP demo out there without doing much research (maybe they asked one or two people) but doing that undermines their credibility as both a collector and a person because they want to believe they have it so much that they won't listen to other's logic or do the research. The only two potentially rare demos I've seen this with are "Plaster" (which was only available on hybridtheory.com way back in the day) or something claiming to be a "Papercut" demo called "Paranoia" (although it hasn't been confirmed some still swear they have it. I can tell you one thing, unless you followed Linkin Park back around pre 1999/early 2000 or got it somehow from someone who did follow them back then, chances are YOU DON'T HAVE IT. Sounds ripped from advertisments/websites/shows/etc: As a serious LP mp3 collector I don't care what was ripped from a Russian radio ad promoting Meteora back in 2003, neither should you. The same goes for sounds ripped off any of their DVDs ("Wizard Song" being the exception because that resembles a song somewhat ) but people are taking things too far, everytime a LP plucks a guitar string people rip it, called it "Meteora b-side" and claim they have it, not a good idea either. The bottom line here is common sense. Collecting these mp3s isn't about who has the most, to me it's about collecting the right ones. You can have 1000s of LP mp3s but still nothing in your collection that people want, the best rule of thumb is to stick with offical LP releases/rare releases and the demos, stay away from the things above and you'll save yourself a lot of time and heartache.