My Alpine iDA-X305S doesn't shuffle properly when I use a 16 GB flash drive. The head unit reads the files fine (i.e. when I don't use shuffle, I can play folders and search throughout the entire drive's contents), but when I use shuffle mode (M.I.X.→ALL), it only plays the first <125 songs.

It's a FAT32 formatted SanDisk Cruzer Blade 16 GB (1260 songs, 10.9 GB). The files are 16 bit stereo 44.1 kHZ CBR 320 kb/s WMA files which were transcoded from FLAC using WinAmp with its built in WMA encoder.

The head unit can shuffle properly. I use the same settings on my 2 GB flash drive (190 songs, 1.68 GB) and it works fine. (I verified that it doesn't limit its shuffling to the first 130 songs.)

I've tried:

• reformatting the flash drive
• putting fewer songs (~5gb IIRC)
• changing the file structure from drive:\artist\folder\song.wma to simply drive:\song.wma

Please let me know if you have any ideas of why this is happening or how to fix it. Thanks.