When I got my first mac (MacBook 2008), I had been waiting and waiting for the updated ones (aluminum). And then I got ticked off when I saw the base model dropped from 2.4 ghz to 2.0 ghz! Also, while the price difference for each upgrade had been $200, that also changed to $300. At the time I was counting pennies, trying to pay off my mortgage as fast as possible because I'd save a LOT of money in interest. I just wasn't ready to pay $300 more. It just pushed it across my limit.
I've been looking again at Tuneskit. Seems it stopped working at least as long ago as last April and still not fixed. Apparently it works in Windows though. I tried to launch my present version and every time got a report that it crashed. I downloaded the newest version and while it opens up, anything I click on does nothing. Can't even quit (had to force quit). I did find I could drag a video into the window and it gave me the option to convert - but clicking "convert" just beeped.
So, I went to my MacBook (El Capitan) and downloaded the latest. It accepted my license key and stared the process of converting a movie. So far it's working. I'll have to wait until it is done to be sure it worked and, if so, copy it to where I keep those copies (I still run the originals in iTunes).
Meanwhile, I'm still researching setting up a new mac while moving over what I need. It's amazing how hard it is to find anything that really explains things. I can find people who say it isn't necessary to do a clean install (which may or may not be true, but I'd prefer it after 10 years!) And some advocate it, but their "instructions" are all about setting up the new computer, but nothing about moving stuff you obviously must move (at the very least, any documents and email stuff because you can't recreate all that stuff!).
About the closest any of them seem to come to is to set up the new mac and then use migration assistant to move everything over. Well, okay, if I understand it correctly, that should leave the OS alone as well as any built-in Apple apps. But they never say anything like, "Migrating apps, documents, and settings will not carry over any old issues". So I figure they either don't explain things well or they are unaware of what could or could not be a problem.
Heck, at this point I don't even know what happens if I download fresh copies of the apps, but then find some I need which either I can't find anymore or don't have the license for and so I need to move them from my old mac - I don't think Migration Assistant lets you chose individual apps so, if you tell it to migrate your apps, will it overwrite those I downloaded to the new machine already (which will either be the same version or newer)? This should be a lot easier to find out about!
Just checked the converted movie. It's playing, but I've heard some split second sound breaks. I need to move them to my iMac, in case the issue is my old computer on playback. In fact, I probably need to double check all those I converted before, just in case. It's one of the reasons I use the originals!