p.s. Here is a typical usage scenario:
1. Copy "History of Science" to the 2GB flash card on my R4DS.
2. This audiobook has 600 .mp3 files, each file is 2 minutes long.
3. The .m3u playlist has all of the .mp3 files in order.
4. Load the .m3u playlist - it starts to play from the first file in the playlist.
5. 60 minutes later, its onto the 30th file in the playlist.
6. I save my spot with a "bookmark", for later.
7. Battery runs out.
8. I charge the DS.
9. I restart the MP3 player, and use the "bookmark" to skip back instantly to the saved spot, and resume listening.
10. An hour later, I want to listen to a song, so I save spot with a "bookmark", for later.
11. I listen to the song.
12. I use the "bookmark" to skip back instantly to the saved spot in the audiobook, and resume listening.
Bookmarks