PRE doesn't have the option for custom sizes, you're stuck with the standard ones provided. Some posters on this forum suggested there is a configuration file that can be edited to add new formats - but I don't recall any of them coming back to say if they were successful.
Insanity is hereditary, you get it from your children
Unfortunately, you will need PrPro for this. It handles odd-sized source footage, with its Desktop Preset for each Sequence (think mini-Projects in one), that lets one customize most attributes. PrE has a fixed set of Presets, and you will also be faced with doing several Projects.
Sorry for the bad news.
Since none reported back about a hack, I will ... Might be handy for future ref.
Here's what I did; as an example.
C:\Program Files\Adobe\Adobe Premiere Elements 8.0\settings\SequencePresets\PAL\DV
Copy Standard 48kHz.sqpreset
Name it MyCompany.sqpreset
Open it with notepad.
Saved the file.
Not sure yet if it's 100% ok now, but it does seem to work for now.
Before you get too deeply into the project, I'd recommend you do a test run through an entire project -- including output to DVD, WMV or whatever.
Often problems with these hacks and non-standard settings don't show up until you output your video. I'd hate to see you put hours and hours into a project only to find that, when you output it, it has a black frame around it or plays jittery or something.
This worked for me! The only difference is that I copied the "HD 1080i 30 (60i)" preset under C:\Program Files\Adobe\Adobe Premiere Elements 10\Settings\SequencePresets\NTSC\Hard Disk, Flash Memory Camcorders
and updated the numbers as mentioned by Philippe V8. I wasn't sure if changing the 768 to 702 in the pixel aspect ratio was correct but I did it anyway and the video turned out great.
See here for the quick test run I just created:
By the way, this is the preset I needed for the GoPro setting R4 which is 960p. I can't tell you how long I struggled to try and fix this problem. I've got a ton of footage taken at 1280 by 960 (setting R4) as this is the setting that provides the most vertical and horizontal viewing area. Because the only "close" preset that was offered in Pre Elements 10 was 1440 x 1080, I had been using that one and all my videos had a terrible boarder around the edges. If interested:
and here for examples of the bad boarder:
The fixed video (first one) has the boarder on the side but that's because the youtube export setting only has a 1440 (or 1920) by 1080 option. When I export the video to my computer and use the export custom presets of 1280 by 960 it looks perfect. In the future I'll just upload these files to youtube without using the online option in Pre Elements 10; then there should be no boarder at all.
PhilippeV8, thanks so much for the help. I was so frustrated and gave up several times and wanted to return the software. Now I'm more motivated to do more editing and actually make something with all this footage I have. thanks again!