Crashing on boot up with 27Gig of music

Not sure if the clip zip is crashing or is just turning off its screen while it loads the database, but now that i’ve loaded all my music to a 32GB card, in both MP3 and AAC, and it just looks like it turns off after a couple of minutes. No buttons bring the screen back on. I havent let it run after the crash to see if it comes back after a while. Ive been just restarting the player.  Ive refomatted the card and the zip itself.  Anyone else found and answer to this?

There are some known issues with some AAC files that could cause this. SanDiks is looking into it, but in the meantime, I’d remove the AAC files and see if it works OK without them.