I imported a 4GB 1 hour long mp4 file into Studio 21.5 and performed a few edits, slightly decreasing its length.  When I exported it, the resulting mp4 file was 30GB in size - almost as though it was uncompressed.  Yet the file is in mp4 format and plays correctly.  What's up with that? 

I have a video that has two audio channels; left & right.  For some of the clips in my movie, I want to switch the left and right channels.  I see that there are software packages available that will accomplish that, but I wonder if there is any version of Studio that can accomplish that internally (I have 14HD and 19). Raoul

Thanks for the reply.  The files are typically about 6 GB long.  The software doesn't seem to choke on them; it processes them normally.  Except that when I export the file and assign it a name, the software ignores the name I want. Raoul

I'm a new user of this program, and have experienced some puzzling features that I've come across. 1. The most irritating one is that when I export a file, the SW asks for a file name. But no matter what name I key in, it assigns a numerical name with something like 18 characters. 2. And then when I go to Windows Explorer to change ...