Movie/Media File

When I open a file with an mpeg extension, it gives me an error that the program has peformed an illegal operation… and when you click on details it shows the following message:

MPLAYER2 caused a stack fault in module at 0000:b00ce3a1.
Registers:
EAX=c13f4000 CS=0137 EIP=b00ce3a1 EFLGS=00010202
EBX=0000c200 SS=013f ESP=00feecb0 EBP=00000000
ECX=00feefec DS=013f ESI=c0f00000 FS=4f37
EDX=00feefec ES=013f EDI=c0f00000 GS=0000
Bytes at CS:EIP:
8b 75 18 8b 58 50 85 f6 74 45 3b 5e 08 72 40 8b
Stack dump:
00feefec c0f00000 801f325c 0000c200 b00cdd5f c0f00000 00004000 83a4c2f8 00feef14 0000c200 801f325c bff7b74a c0f00000 00000038 816582b8 00100000

This error occured on a PC that has Windows95.
Please assist.