Render times for Mpeg1...say it isn't so

haywire wrote on 1/2/2002, 7:33 AM
I placed a 45 minute avi on the timeline 90 minutes ago with no FX, fades, titles, blank events, etc. The render is only 12% done with an estimated 10 hours and 30 minutes remaining. Someone please tell me I'm doing something wrong. The original avi only took a few hours to render.

Win2k Pro, PIII 866, 512Meg ram, Maxtor 80Gig external Firewire drives

Comments

haywire wrote on 1/2/2002, 12:50 PM
Anyone else experiencing extremely long render times?
mayberryman wrote on 1/2/2002, 1:49 PM
It sounds like you might be rendering to an uncompressed .avi. If so, you should be rendering using the SonicFoundry DV codec.
SonyEPM wrote on 1/2/2002, 2:45 PM
MPEG-1 can take a LONG time to render, no doubt about it. MPEG-2 for DVD is quite a bit faster, but if you are making Video CDs, you'll need MPEG-1, and render times can be significant.
haywire wrote on 1/2/2002, 3:27 PM
Ok, and yes I am rendering for VCD, and it looks like it's going to take the full 11 hours. Just wanted to make sure I wasn't going about it the wrong way.
Spot|DSE wrote on 1/3/2002, 1:59 AM
Vegas isn't optimized for MPEG1, but rather optimized for MPEG2. In a world of choices, I think they chose to develop/optimize for the bigger needed codec/format. MPEG1 does take much longer to render than MPEG2.j Regardless of the encoding tool.
mayberryman wrote on 1/3/2002, 8:01 AM
hmmm..well, I've rendered projects longer than 45 min, using the best quality setting, on a PIII 650MHz, and it takes a lot less than 11 hours. I usually get about a 6 min render to 1 min source ratio. So 1 hr source takes roughly 6 hours. 11 hours sounds very high to me..especially if you have no fx, etc. as you indicated.
Chienworks wrote on 1/3/2002, 9:17 AM
Haywire indicated that the render was to MPEG1 format, not AVI. Rendering
to just about any kind of AVI will be much faster than rendering to MPEG.
AVI compression is frame by frame, and only one frame at a time has
to be considered. MPEG compression requires that a group of frames
must be processed simultaneously and this takes a lot more time.
mayberryman wrote on 1/3/2002, 11:44 AM
yup....avi to mpeg-1 (i'll qualify that by stating I'm using the vcd template - best quality setting). I'd estimate about 6~7 hours for 1 hour of .avi source to be rendered to mpeg-1 (vcd template) using vv3.

If my time is unusually fast, it makes me think I must be missing a quality setting. If so..please set me straight...as render time means less to me than final vcd quality.