I have Mac OS-X 10.11 (El Kapitan) Will creator work for me?

I have DIYed a home gallery slides but it won't upload to YouTube? What should I do?

I need to buy a HDMI to Audio Video converter to enable connection between my laptop and old generation analogue TV. Where can I buy this converter in New Delhi or NCR?

I've downloaded some videos in mpeg format, can I watch them on iPad?

I checked out a CD from the public library and listened to it on my computer. Then I dragged two songs into my iTunes library. Is this illegal, since that's loaned stuff?

just purchased a movie,  i can't play it on my iMovie.
iTunes said the media is protected by DRM.
How can i do?

It's said dslr camra video is too large although it is not taken in 480p.
I recorded a 2-minute video clip, the size was about 100 mb. why?

I want to make DVD to VOB for ripping DVD to VOB video for playback on compatible devices. Who can tell me how to finish it? Thank you.

I have been trying to get this video done I made but the files are so big and HQ that they lag my software!
They are MP4 and they are HUGE. I have been trying to get them done for the past 2 days but haven't been able to because of the slowness it causes. So I want to downgrade the size so it will help me to create the videos easily.
I am currently using Freemake Video Converter, but that sodding bastard took 6 HOURS to convert in WMV!!!!
So I don't want to go through that again... What is the fastest and best converter? And what format should I convert from MP4