We actually just redid that free course, the only thing is we kept what we could from the previous version so indeed some of the data can be outdated.
However, IDE Rom Drives are still sold and still used on many modern pc's. Calling them outdated because your computer didn't use them is a bit harsh.
If you go to newegg and look at dvd burners you see this distribution of interfaces:
Interface
IDE(18)
SATA(46)
USB (1)
So on the way out? definitely. Still quite relevant however.
By the way:
I was working on a project to get all of our videos transcribed
and they would end up like this link:
Dual Booting XP and 7 1 of 2 - Computer Repair Course Learn PC Repair Today
It got put on hold because I was having some issues with the company doing the transcription.
If there's certain ones you want transcribed feel free to ask for them as I will submit them and update their page.