Re: Pro 9: Rendering failures using MainConcept AVC/mp4?

Update: Boosting the value back up to 256MB (less than what the setting had been before) seems to have enabled the render to progress, or at least to get started, at least using one of the sub-HD presets installed with Pro 9.0 thanks for pointing me in what seems to have been a helpful direction!

Here are the specs for my one successful render so far:

General
Complete name : M:Vidalbe09littlelight01mcX1.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42
File size : 19.3 MiB
Duration : 4mn 28s
Overall bit rate : 604 Kbps
Encoded date : UTC 2009-07-19 21:41:43
Tagged date : UTC 2009-07-19 21:41:43

Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Baseline@L1.3
Format settings, CABAC : No
Format settings, ReFrames : 2 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 4mn 28s
Bit rate mode : Variable
Bit rate : 473 Kbps
Width : 368 pixels
Height : 208 pixels
Display aspect ratio : 16/9
Frame rate mode : Constant
Frame rate : 29.970 fps
Standard : NTSC
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.206
Stream size : 15.1 MiB (78%)
Language : English
Encoded date : UTC 2009-07-19 21:41:43
Tagged date : UTC 2009-07-19 21:41:43

Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : No
Codec ID : 40
Duration : 4mn 28s
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz
Resolution : 16 bits
Stream size : 4.10 MiB (21%)
Language : English
Encoded date : UTC 2009-07-19 21:41:43
Tagged date : UTC 2009-07-19 21:41:43

However, when I tried to do a new render at something closer to 720p 30fps I still got the same crash. (I have rendered at least 50 videos for YouTube/vimeo using similar profiles under Vegas 8.0c, using the MCMP4 plugin or its equivalent in 8.0c, fwiw).

Perhaps I just don't have the RAM and processing power needed for doing it in 9.0? I only have 4GB RAM, not counting video RAM (512MB) on my NVIDIA GeForce 8500 GT card. CPU is an Intel Core2 Quad Q6600.