Media Player Classic is the perfect substitute for Windows Media Player. Estetically is identical to version 6.4 and has the same lightness in terms of ram occupation, but it has much more usefull functions Whats new :

• mpeg video decoder: sse2 optimized motion compensation and deinterlacing
• mpeg splitter: 192 byte/packet ts files are supported, confuses mpeg and aac audio streams less likely, the duration reported for joined mpegs became more accurate (but the result of seeking such files is undefined ;).
• ogm sync problem fixed
• more tweaking of the core of all splitters

Download : Media Player Classic 6.4.8.1 for XP/Win2000
Download : Media Player Classic 6.4.8.1 for Win98/ME