Success! (and WDM/VfW question)

[CauCauCau]

A while ago I put in a post asking about hardware requirements for capturing. I was a little worried that my 700 Mhz Athlon and slow, smallish harddrive wouldn't cut it.

Here's what I have:
Athlon 700 on ASUS K7V (with crappy VIA chipset)
128 mb of pc133 RAM
32mb Riva TNT2 video card
17gb Fujitsu 5400 rpm HD
Provideo PV951 (bt878 with generic drivers)

I've been able to capture at a variety of resolutions, in a veriety of formats with pretty much no dropped frames. I was under the impression that my small amount of harddrive space (8 gigs free) would be a limiting factor. I really like the results of the Picvideo MJEG codec. 480x480 with decent quality (17) gave me no dropped frames in iuVCR or VirtualDub.

I decided to give Cyberlink PowerVCR a try and I like it. I've heard bad things about the quality of direct-to-mpeg captures, but they look fine to me. The "pause" live TV option even works well. Altogether I'm impressed with my cheap little card on my oldish system. I can make SVCDs and VCDs.

What I still don't know too much about is the whole WDM/VfW thing. Anyone know of a link to a good explanation of the two, how wrappers and used and other information related to WDM/VfW?

[Dragonsf]

go to the msdn online help and look under DirectShow.Everything you need (or mostly doesn't want) to know about VfW and DirectShow.
WDM is only fro device drivers.I hope you don't need anything specific to know about this, but you can find info on this issue too.
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dshow/htm/directshow.asp