what software to playback MP4 files?

[Solnyshko]

fresh XP install and I'm getting stumped by the most basic of things i used to take for granted

Windows doesn't recognise a podcast i just downloaded - any suggestion on what to run it on?

*.mp4

 

[Solnyshko]

thanks. so VCL seems to have smallest operating overhead (resource-wise)

would you recommend this as a default player for all media? the interface looks pretty basic, but certainly less like bloatware when compared to Windows Media Player