I'm using iuVCR to capture 8mm analog tapes to Huffyuv AVI format and VirtualDub to apply filters (smoother, deinterlace) to clean them up before encoding to a SVCD. However, when I play back a edited file from VirtualDub, the AVI video and audio hangs up within seconds. The "unedited" AVI video from iuVCR is appears to be ok prior to using VirtualDub. Any ideas? Are the settings/options in VirtualDub correct?

Capture settings - iuVCR
video - 720x480, YUY2, Huffyuv, NTSC, 29.97
audio - PCM, 48kHz
Interleave - none

Edit settings - VirtualDub
video - full processing mode
filters - temporal smoother, deinterlace
frame rate - no change
Compression - Huffyuv
audio - direct stream copy
enable audio/video interleaving
preload 500ms of audio before video starts
interleave audio every 1 frame