Getting an Error while converting WAV File to FLAC

Hi,

I am constantly getting an error while converting a [ATTACH=CONFIG]2535[/ATTACH] file to a flac file. Not sure if I am missing something...

Error converting to FLAC, 'J:\ROMANCE WITH YOU\01 Tere Mast Mast Do Nain.wav' to 'E:\ROMANCE WITH YOU\01 Tere Mast Mast Do Nain.flac'
Error unable to open File 'E:\ROMANCE WITH YOU\01 Tere Mast Mast Do Nain.flac' for writing. [clEncoder::BeginConversion]

What is the "E" drive. the converter is not able to access the E: drive it seems. Is this a NAS that needs permission or ????