Is it possible to capture an MPEG2 (DVD) with AC3 5.1 sound?

I currently use Movie Factory 2 LE to capture MPEG1-Layer II and it authors it to AC3 2.1 (not support for 5.1)...

SOUND: I have a Hercules Game Theater XP 7.1 which has a digital (optical) line in...
S-VIDEO: MSI-8606 TV@NYWHERE PCI TV-Tuner

Is there a software that would capture the video (MPEG2 - DVD) and audio (AC3 - 5.1)?

I guess that if I capture MPEG1-LayerII, there is no advantage to convert to 5.1 (BeSweet)...

Any ideas?

thanks