I am trying to import this Mpeg http://rs6.loc.gov/mbrs/edmp/2443s1.mpg into Vegas but I get an error saying it can't import and to make sure the file exist.
Mod Note
The file I linked to is public domain and is from the United States library of congress
The format is apparently not supported. I tried changing the suffix to various containers, but it just doesn't work with Vegas. You will have to use a third party utility, re-encode the video to an intermediate format (so you won't lose quality, e.g. the Avid DNxHD format, via Quicktime Pro or MpegStreamClip), and only then be able to import inside Vegas.
"The Great Train Robbery - Part 1" loads for me (Sony Vegas Movie Studio HD Platinum Version 11.0 (build 220) - I must have some weird codec or something that makes it work.
General
Complete name ~~~~~\2443s1.mpg
Format : MPEG Video
Format version : Version 1
File size : 30.9 MiB
Duration : 3mn 36s
Overall bit rate : 1 200 Kbps
Video
Format : MPEG Video
Format version : Version 1
Format settings, BVOP : Yes
Format settings, Matrix : Default
Duration : 3mn 36s
Bit rate mode : Constant
Bit rate : 1 200 Kbps
Width : 320 pixels
Height : 240 pixels
Display aspect ratio : 4:3
Frame rate : 29.970 fps
Color space : YUV
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.521
Stream size : 29.5 MiB (95%)