I recorded a video on my phone that's turned sideways when played. How do I rotate it to play on my computer?

I have a MBP and I want to download my DVDs to an external HD but Im not sure exactly what to do. I want to be able to rewatch them either on my computer or TV but Im not sure what the best quality is to rip them? Also, which app should I use to RIP them? Handbrake, etc.... Any additional information or videos would be appreciated!

have loaded my videos on to my computer but when i load to dvd programme they are upside down

I know youtube converts your uploaded video after it's uploaded.
I'm trying to copy the same quality a video has on a computer onto the uploaded version; hopefully you can follow what I'm tryin' to say.

I want to put video on to my computer from my video camera, which is Sony. The video is on cassette, I have software to transfer it, but it doesn't work. And it keeps asking me to download macromedia flash player, and after I do nothing happens. Anyone have experience with this?

I have no experience on Blu ray files and disk yet. I haven't bought a single movie in blu ray.
So I would like to ask, do I need a special media player to play blu ray movies downloaded from the internet? How about from a blu ray disk inserted into the disk drive?

I want a converter program to convert video to gif easily. Windows movie maker helps me get video clips, but I need a good gif converter without watermark inserted. Help? I have tried a lot, either give low quality or come with watermarks.

Hello.  I am trying to burn some halloween video files to a dvd.  They are from AtmosFX.  It was their suggestion to try your free trial and burn my videos.  I have opened the files and they are not showing from your program.  I went down the list trying the different formats and had no success.  I also tried dragging and dropping, but all I got was a circle with a line through it.  Any suggestions would be greatly appreciated.  Thank you for your time.