.zip and .rar
Not at all.
This all depends on your personal preferences. Compressing files will make them easier to transfer and transport. However, compressing files will also affect the quality. If it is an image or video, compressing it will greatly affect the quality.
I think you can convert .oma files to .mp3 format file with format factory.it is available on http//www. softpedia.com
There are many ways that files and folders can be compressed, or made smaller. The zip format is one of the oldest. RAR is another compression format. When you lower the quality of a jpg image file, you are also compressing it. There are many applications that can open these compressed formats. Search for 'Open Zip' or 'Open RAR.'
Two advantages of compressing files and folders is that firstly you can free up space on your hard drive. Secondly, when you want to send the folder or file as an e-mail attachment, there will be no attachment size or delay issues.
rty compressing files before it is written (zip or rar)
HOW TO OPEN AIO FILES
Well, I would recommend converting jpg files to PDF format files with a jpg file to PDF format file converter. There are many jpg files to PDF format converters offered for use for a fee of no charge.
The files are in .ts format, you'll need a converter to change it to mpeg format.
Adobe Reader works with files that are stored in PDF format.
If you are wanting to change the file format then changing the file extension should work, I've done it many-a-time. Some formats might not work because of complicated compressing/encoding etc. but most common ones do! Hope that helped :)
video files (mpg file extension, MPEG file format). It is the same video file format. You can use booth file extensions.