Converting from PC to xbox issues

[Spartacus GR77]

So For many songs I am able to convert to xbox format then place on a USB stick and then paste into my xbox folder and no problems the songs work and play beautifully.

 

For many other songs however, it says they were converted, no errors, but when I go and paste them into folder nothing happens it's almost like they are an empty file.

 

For example ALL the Five finger death punch songs I am unable to paste them from USB stick into xbox folder. The only one which worked was Lift Me Up.

 

This happens with other cdlc as well I just used five finger death punch as an example. Is this from my end caused by the conversion process or is this the way the developer of the cdlc packaged the file?

 

Could it be if they are using a different version toolkit from the one I am using?

 

Has anyone else experienced this?

 

Any suggestions?

 

Thanks