Remember when i told you a few words about a new revolutionary USB Module named VMUSIC2 ? The VMUSIC2 is a complete MP3 player module from FTDI, Inc. which makes it easy to integrate MP3 functionality in to your next microcontroller project. It has two interfaces: SPI or UART (serial)

This instructable will cover getting connected and controlling your VMUSIC2 module from hyperterminal. I recommend starting out this way because it will allow you to get familiar with the commands and get a feel for how it works before connecting it to your microcontroller. I will follow up with another instructable on controlling it from a microcontroller.

Getting started with VMUSIC2: [Link]

If you’re looking for a build-it-yourself, standalone, USB harddrive based MP3 player, this may be of interest to you. Originally conceived as a replacement for a CD player, this unit sits on the shelf next to your stereo and connects via standard RCA line-out audio connectors. Features of the player include:

• Large, back-lit LCD display
• IR remote-control receiver port
• USB 2.0 connection for fast song transfers
• Functions as a USB harddisk
• 24-bit stereo audio out
• Support for fixed & variable bitrate MP3 files to 320 kbps
• Supports harddisks up to 137 GB

This is an open-source project. Full hardware schematics and software source code are freely available on the project site.

Hard-disk Based MP3 Player With USB 2.0 capability: [Link]

The design is based around the AVR Butterfly from Atmel. The use of this module greatly simplifies the hardware design and constrution and packs plenty of punch for $19.99 USD. The remaining hardware can be easily placed on a single sided PCB ($10-$20). The MP3 decoding is handled by a VS1001K decoder chip from VLSI Solution Oy ($20). This chip also has an onboard DAC with enough power to drive headphones, simplifying the board design even further.

AVR butterfly Mp3: a diy mp3 player: [Link]

you should also check the DIY Mp3 player article i wrote some time ago.