Christmas present - A full hour video

[Betchass1]

I believe that DOS command is
COPY A B C
so that A+B=C. There might be some other syntax in between.

 

[Betchass1]

Wow. I'm generally not that ashamed of watching tickling vids, but these are kind of embarassing. The opening music in #1 is friggin awesome, though! It was all worth it for that music. I might try to transcribe it.

 

[Aznagoel]

I believe that DOS command is
COPY A B C
so that A+B=C. There might be some other syntax in between.

I tried that myself with files splitted by hacha. It doesn't work. You really need this small program hacha. For your convenience here it is: