I've used the excellent R4 Commander from TrolleyGuy for my R4 card with great success, but now I have a DSTT too and would like to use the same single manager/trimmer. When I tried to use R4 Commander to trim and load the roms onto my 1GB Sandisk MicroSD everything looks good, with 40 games and 100MB still free. Load up the DSTT into the DS tho' and I get the loading freeze that many people have reported. When I manually put the .nds files on the card everything works, but of course there isn't any trimming so I'm down to 30+ games. This makes me believe that my MicroSD and my DSTT are working OK. In summary, R4 Commander with DSTT, a good idea or not? Alternatives?