difference between wma and audio stream of wmv

[kelvening]

I'm working at wmv decoding,when I found a slight difference between wma and audio stream of wmv.There are many "0x0D0A" in audio stream of wmv instead of "0x0A" in wma file .
Maybe the bytes are mark byte or something?
Is there any other difference between the two streams?
The audio stream and wma are both wmv9(not professional or lossless) format . The wma file is stripped from wmv files by WM stream editor.

[informationspy]

the difference is just wma format not include video section but the wmv format contain the video section and audio section . so the format is different