There are different possible bit-depths and sample rates within .WAV files.
Here is a site that explains it more in depth.
I think hooking it up to your laptop is a great idea, but I would still suggest trying it with an .mp3. or .FLAC file. On that note, you may want to convert your .WAV files to .FLAC anyway to save some space (and lose no quality), unless there is a specific reason you need them as .WAV.