I bought a 64 GB microSD card with adapter for about $60.00 US. I had problems getting the 8GB Clip+ to read it until I formatted it. I found something somewhere that said to format it to FAT32. I couldn’t get that done on my Win XP machine but connected it to a MacBook and formatted (partitioned) it for PC then it worked. I currently have 6,730 songs on my Clip+.
The why is a long story, but it is all there :o)
When I put the uSD card in with all that music loaded on it the unit worked a LONG time to get all the music recognized or whatever it alled it. The progress bar seemed frozen but it moved ever so slowly and finally made it all the way across (I think it acutally took an hour or maybe more).
Now to rig up external power for the little bugger :o)