problem with virtual dub

[nut10]

I have a movie that i want to convert into vcd. I do it the same way as usual:
-- Virtual Dub - Extract the WAV file

-- TMPGENC - convert

when i was cleaning up my hd and remove the unneccessasry files i accidentally del some kind of codec and now every time when i try to use virtual dub to extract eh WAV files this error message occurs:

"ACM failed to suggest audio depression format" and
"AviOutputWAV: The handle is invalid"

Want am i doing wrong. Can anybody help!!!

[nut10]

i use gspot2 and look which codec is missing and i found this....

mpeglayer3 (mp3) (0x0055) ISO/MPEG

anybody know where can i download this codec...

[nut10]

k i fix everthing already

damn i should read other people's post instead other then open the same post over and over again.

sorry for trouble and thx for the help which is found in other posts