I've published some articles about digital music and sound files.

• Wave (WAV)format
• Advanced Audio Coding (AAC) format
• Monkey's Audio (APE) format
• Ogg Vorbis format
• Advanced Systems Format (ASF) format
• Windows Media Audio (WMA) format
• MPEG-1 Audio Layer 3 (MP3) format

Hope some people will found it interesting :)