If you have used the Band Brothers Save Tool, you may be interested in my new project, the Nintendo DS Save Host. I've released an alpha that can probe and read card saves.
0.3 adds one feature--trailing padding support for save dumps. This allows it to work with several of the newer devices on the market. If your .sav file is not 256k in size, you may wish to give this version a try.
The newly-rechristened "Band Brothers Save Tool" has finally hit version 0.2! Notable in this release is support for newer versions of the Action Replay MAX, as well as the GBA Movie Player M3 and other save extraction methods that use raw save dump files. And, glory of glories, a MANUAL!
It has recently come to my attention that newer versions of the Action Replay software will write saves into a different format than dbbsed expects. Because of this, version 0.1 will not work with this new release.
If anyone has information on the new file format, please send it my way. I would like to create a new version of dbbsed that supports this new format.