Converting Hi8 Videos to best quality deinterlaced highly compressed x265 .mkv
I have used a DVD recorder to copy my old Hi8 videos to DVD's. Now I want to de-interlace them without losing any quality (probably converting to 60fps) and then converting to a compressed .mkv with x265. No matter what I do, the sound comes out out of sync and since some of these are 2 hour videos I have to CTRL-C them after about 20 - 30 seconds to check for sync issues before letting the systme run for hours converting a 2 hour video. I don't care if this is done in one, two, or three steps. I'm looking for a tried and true script(s) that someone has used successfully. Can anyone help?
PS. this will be run on either a mac pro with an i9 or an HP Envy with an i7-8550U with an Nvidia MX-150 so in either case, it needs to keep the laptop from going to sleep.