Thanks, Fourrober. I'll give it another shot.

Thanks for the feedback, but I'm not sure it's gotten me anywhere. For the record, I'm running the most up-to-date firmware available on the website, and I tried formatted the (brand new SanDisk) cards both in the player and on my laptop (the latter using FAT32). The latter actually seems to...

Hey all, I got an X5 a few weeks ago and am running two 200GB cards in it. Unfortunately (heresy warning), I purchased it largely to accommodate my rather outsize collection of (overwhelmingly) mp3s, which it does wonderfully, except that, above 30K files or so, updating the file library...