Arduino library for WTV020-SD-16P audio module

Trying with my module with no luck.. for two days now!...

Read all the thread and today i tested four SDs with ethernet shield.. the two of them (2GB) worked fine... the other two (4GB, 1GB) are not working...

The one of the two (2GB) is Kingston . Tried various formats but no luck... the unit is complete silent.. Only the LED after some seconds stay lit...

I am just wondering.. is there any other module maybe more "serious" out there to produce sound with arduino and especially with no gaps at loops?

Thanks in advance!