electure which plays perfectly fine on my regular XP
plays only the video. Is there a way I can hear the
audio. The audio is important to me not the video.

I've found a couple of wmv-avi converter guides at DVD Help.

First link

Second link

After you have the file in .avi format, Virtualdub can strip out the audio. I'm sure there are other programs to accomplish this, but this is one that I know of that should work for you.

How big is this lecture?

Learn as you go - share what you know

there are a total of 26 lectures on two regular CDROMs.
I will try and come back to u.

Umm... If you used wm encoder or downloaded it somewhere, Might have encoded it so the video codec is wmp 7.1 and the audio codec is 9.0... The axim can't play wmp 9.0 audio until the new Pocket PC 2003 OS comes out......

PC ( Linux ) and Apple user- Windows repairer... lol
--Apple machines--
Apple Powerbook G4 1.5ghz 12" w/dvd burner, gforce5200 64mb, dvi, 1gb ram... just gotta wait till christmas!
-- Mac Mini-1gb DDR ram-1.42ghz-ATI 9200 graphics( runs unreal 2004 perfect) M-Audio USB 7.1 External Sound -80gb
--G3 PowerMac Server--
450Mhz 1mb Cache G3 PowerPC
80 + 30 GB HD's 1GB Ram
--Linux Box.... PII 233Mhz 6gb

interesting...

I have encoded quite a few wma files using 9.0 and they all play fine on the Ax.

For video, the matrix trailer I downloaded a while back from a thread on this site is encoded using wma 9. It sounds alright to me as well.

Palmax PD500C >> Axim 400MHz
2 x Lexar 256 SD; 1 x Integral 64 CF
Krusell case with slide swivel clip
Lowe Pro D-Res 120 pouch