FTP File Needs .mp4 Extension

Hey gang, just a quick note that when using the CoreFTP application to upload the MP4 Video to Blip.tv, it needs the .mp4 extension.  See below for example.  I didn't know it was that picky but we know now.

STOR Share Sow and Grow.mp4 
Connect socket #2100 to 74.122.174.47, port 58101...
150 Opening BINARY mode data connection for Share Sow and Grow.mp4