Why is my .mp4 an "unsupported format"? at DVinfo.net

Norris Combs · August 11th, 2012, 12:19 PM

I use Vegas 8 Pro to render, using the following parameters:

My source video is 1920 x 1080i

Main Concept AVC/AAC (*.mp4)
Template Custom 1920 x 1080
Profile Main
Frame Rate 29.970 NTSC
Field Order Upper Field First
Pixel Aspect Ratio 1.000
Number of Reference Frames: 2
Use Deblocking Filter: Selected
Variable Bit Rate, 2 Pass
Maximum 20,000,000
Average 14,000,000

Have done this several times before with different projects, only this time the resulting .mp4 file cannot be played by any of my players (Arcsoft TMT, VLC, Nero, or Windows Media Player). All of them spit out the error message "Unsupported file format".

Any ideas?
Thanks,

Seth Bloombaum · August 21st, 2012, 10:34 AM

It is possible that some other software install has replaced the MC codec with a new one - do you recall installing anything with MP4 capability?

If so, usually, the swiftest repair is to reinstall Vegas.

August 11th, 2012, 12:19 PM	#1
Norris Combs Major Player Join Date: Apr 2008 Location: OC, CA Posts: 344	Why is my .mp4 an "unsupported format"? I use Vegas 8 Pro to render, using the following parameters: My source video is 1920 x 1080i Main Concept AVC/AAC (*.mp4) Template Custom 1920 x 1080 Profile Main Frame Rate 29.970 NTSC Field Order Upper Field First Pixel Aspect Ratio 1.000 Number of Reference Frames: 2 Use Deblocking Filter: Selected Variable Bit Rate, 2 Pass Maximum 20,000,000 Average 14,000,000 Have done this several times before with different projects, only this time the resulting .mp4 file cannot be played by any of my players (Arcsoft TMT, VLC, Nero, or Windows Media Player). All of them spit out the error message "Unsupported file format". Any ideas? Thanks,

August 21st, 2012, 10:34 AM	#2
Seth Bloombaum Inner Circle Join Date: Sep 2003 Location: Portland, Oregon Posts: 3,420	Re: Why is my .mp4 an "unsupported format"? It is possible that some other software install has replaced the MC codec with a new one - do you recall installing anything with MP4 capability? If so, usually, the swiftest repair is to reinstall Vegas. __________________ 30 years of pro media production. Vegas user since 1.0. Webcaster since 1997. Freelancer since 2000. College instructor since 2001.