Imported .mp4 files pixelate in Vegas

[Rebecca Siempre]

I have scoured countless forums to find an answer to my infuriating predicament. I have yet to find a question that details what I am experiencing, though I have tried numerous solutions given to people with problems of a similar nature.

Before I import .mp4 files into Vegas they look crisp and perfect:



After I've imported them, the preview pixelates during movement:



And after rendering, the pixelation remains:



The example .mp4 specs:

General
Name: One Week Friends episode 2 [RAW].mp4
Folder: D:\Project Data\Anime\2014 Spring\One Week Friends
Type: Sony AVC
Size: 223.84 MB (229,213,399 bytes)
Created: Sunday, April 27, 2014, 5:56:04 PM
Modified: Sunday, May 18, 2014, 3:46:09 PM
Accessed: Sunday, May 18, 2014, 3:46:02 PM
Attributes: Archive

Vegas Movie Studio HD Platinum 10.0 specs:

Video
Template: Custom (1280x720, 59.940 fps)
Width: 1,280
Height: 720
Field order: None (progressive scan)
Pixel aspect ratio: 1.0000 (Square)
Frame rate: 59.940
Full-resolution rendering quality: Best
Deinterlace method: None
Audio
Master bus mode: Stereo
Sample rate (Hz): 44,100
Bit depth: 16
Resample and stretch quality: Good

Rendering specs:

Tempate: Internet 1280x720-30p
Video
Video format: AVC
Frame size: High definition (1280x720)
Profile: Baseline
Entropy coding: CAVLC
Frame rate: 29.970 (NTSC)
Field Order: Non (progressive scan)
Pixel aspect ration: 1.0000
Bit rate (bps): 8,000,000
Audio
Audio format: AAC
Sample rate (Hz): 48,000
Bit rate (bps): 128,000
Audio coding mode: Stereo
System
Format: MP4 file format (.mp4)
Project
Video rendering quality: (Use Project Settings)

I desperately need a solution to this! Cutting around the pixelation adds hours to my video editing time and forces me to use my second and third picks for shots.

Please and thank you!,

Becca

[Baldrick]

You could try MP4Cam2AVI. It will try remux the mp4 to avi. Or convert it to lossless avi. Then import the avi in vegas.