Since contributors to YouTube are more and more using MP4 format these days rather than the formerly dominant FLVs, I'd like to be able to view those, ideally after downloading/saving. I currently have WinAmp 5.6 (free version), which explicitly says I'd need the paid Pro version for MP4, and I've also got WMP 11, which simply says it doesn't recognize the file format or extension.
Will I need a 3rd player for MP4 (several free ones are available for XP SP3), and if so, any suggestions? Or can I get WMP to play them with appropriate new codec(s), and if so where can I find those? Many thanks.
(Edit) Oddly, most of these will play properly for me on-site, which makes me wonder if my Download Helper extension is converting them to MP4 while downloading. But I've got the Lite version of that, which supposedly doesn't include the ability to convert.