Media Player Not Seeing All Movies In Hard Drive

I have had my HD TV media player for about a year with no problems about a week ago it started not seeing any new movies I uploaded into my wireless hard drive. After attempting several fixes with no success I reset the media player which resulted in now the media player only seeing movies with titles starting with A thru R….S to Z it does not recognize.

What wireless harddrive is it?  

Are you accessing it via Network Shares or Media Server on the WDTV?

If the latter, the issue is likely the drive – the WD will only list files that the server tells it about.