Hi All,
I'm trying to convert my 450GB drive of live music recordings from WMA to something compatible with Mac. The files are mostly 40kbps, but I do have some files which are higher bitrate, but they are all mixed together in a single folder

I did a test run with a one file, about 25MB in WMA format. Tried converting to MP3 and it came out around 160MB! Wow!

These will be played on a Mac and obviously the quality is already on the lower end. What would be the best format to convert to trying to keep the filesize and quality similar and taking into account the varying bitrates in the same folder?

Thanks in advance!