SanDisk Clip Sport AAC Problems

i have a sandisk clip sport and when i try to play a AAC File Format my MP3 player frezzes on me 

can there be another upgrade to fix this i need help.

You could try installing the latest firmware. 

http://forums.sandisk.com/t5/SanDisk-Clip-Sport/SanDisk-Clip-Sport-Firmware-1-25-released/td-p/340602

How long is the file you are attempting to play?

I was trying to play a 4minute.57second song 

Also the new firmware version 1.25 gives an error that says

“No files found” under music 

Is there another firmware update to fix this

Hi panda1212,

You can download and install the firmware version SanDisk Clip Sport Firmware 1.22 again on the Sansa Clipsport MP3 player and check if it resolves your issue:

http://forums.sandisk.com/t5/SanDisk-Clip-Sport/SanDisk-Clip-Sport-Firmware-1-22-released/td-p/335935