Sony Xplod CD Receiver WX-GT77UI - Data reading issue

[raghumailbox]

Hi,

I have Sony Xplod CD Receiver WX-GT77UI in my WagonR.

Initially I had 4GB pen drive to play songs, then i upgraded (brought new) to 8GB later 16GB and now 32GB.

Upto 16GB it was all fine. Now with 32GB it can't recognize some folders which are at the end of the drive.

Here are the data details of my pen drive -
Capacity - 29.9GB
Used Space - 19.4GB
Free Space - 10.4GB

According to my calculation it is reading only files upto 17.5GB.

Please let me know the solution.