wma is definitely not a very good format. And more you should know about the format: What you should know about WMA/WMV Files. LW now auto filters the format because it is spammed far too much. The higher % of what's on the network is rubbish spam or simply rubbish. Microsoft's poorest file format ever to hit the market. Most of what you find is virus (or much worse) infected.

Most people who use WMA format do it purely out of ignorance. And because it is the default format for saving within WMP which is loaded onto 90% of computers out there. Unfortunately most people do not realise about this. WMA is also a Micro$oft patented format. Not easily converted unless the other converter program has paid license fee to be allowed to do such.