Joven: Organiza gratis tu colección de MP3s
No recuerdo dónde vi el link a este sitio, pero lo interesante, por no decir curioso o arcaico, es que allí en http://www.killertechtips.com/ los contenidos están protegidos los derechos de autor mencionados en esta amenazante nota:
"All contents © Copyright Shankar Ganesh. No part of this content can be reproduced without prior permission from the author".
Como respetuoso de la Ley que he sido siempre, entonces no copiaré los contenidos sino que, en cambio, le haré la merecida publicidad, sin costo alguno. El siguiente es el brillante y excelente post de Shankar Ganesh:
Top 10 Free Programs to make the most out of your MP3 Collection
Here comes a carefully chosen list of free programs that might help you squeeze the best out of your MP3 collection.
Part I - Audio Players
The default audio player software on your Windows is probably not enough, when it comes to extensive features and customizability. Here's a pick of the best media players that can let you sort through and efficiently play most audio formats on your Windows computer:
VLC Player - It's more light on resources that you would imagine. VLC is a very versatile player - throw any odd format, and it plays them for you instantly (FLV included).
Winamp - Winamp has its own fans, it's customizable to a large extent and can come as a great saver. If you listen to music every other day, you need to have Winamp installed. A similar player is Jet Audio.
Songbird - A feature rich application that has great looks, go for it if your Windows computer has got some memory to spare, it's reviewed here. You can customize it by adding extensions (similar to Firefox).
Part II - Organizers/Taggers/Jukeboxes
Jukeboxes are music software that come with amazing capabilities. Go for them if you have huge music collections scattered all around - not just in your computer, but also in audio CDs.
Media Monkey - The best piece of software out there that you'll love using. Tag editor, format converter, CD recording, iPod support, you name it - it's got all the tools that squeeze the best from your tracks.
J River Media Jukebox - Very pretty, has good features. And might serve as a good jukebox.
>> I missed out Foobar, thanks for the heads up Ashwin!
MP3 Tagger - The best ID3 tagger out there in the market, that's free as well.
Magic MP3 Tagger - Update: Oops, sorry guys this is not freeware.
Part III- Rippers, Converters
Audio Grabber - Fantastic audio ripping software, with FreeDB tagging support included. Another similar ripper is FreeRip. Another one a few commenters have mentioned is Exact Audio Copy
Part IV - Audio Editors
Trust me, as far as I know, there's no free editor as much capable as the professional ones out there. But still if you'd like to do some basic recording and effects, you could try these:
Audacity - Open Source, and is very light weight.
Wavosaur - Comes with no installer, and is a single exe file that does the job. Supports WAV format
Part V - Other
Last.fm - A social networking site for audiophiles out there. Listen, get interesting tracks based on what you've played, and add friends! More such music sites here.
Tunatic - A song is playing on your head, but you just can't get it's title right? Then download this, install, hum the song through your mic and let Tunatic locate info on the song for you! Quite cool for show off as well 
Audio Files GDS Indexer - Google Desktop Plugin - Install this one if you have got Google Desktop installed. Adds a bunch of functionality to the Desktop Spider to make it more friendlier towards Audio files.
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Imagen: Audiophile
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Imaginactivo - Atina Chile - Villarrica Cultural
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Imaginactivo Atina Chile