My goal here is to download a single Steam game through POL, and then to be able to make a backup of my entire POL setup, so I can move it to another PC (or the same PC, if need be) without an internet connection. Everything seems to work fine until the very end, where the game's audio ends up becoming very slow and choppy.
I set up POL in Ubuntu 16.04.3 (32-bit), and I installed the Steam client using Wine 2.16. The client launches, updates, and takes me to my library without a problem. I download the game that I want to play in Linux, the newly-released Sonic Mania, and it downloads and starts without a problem. I put my Steam client into Offline Mode, test the game, and it still works perfectly. I then use Ubuntu's Archive Manager to create a .tar.gz of the entire .PlayOnLinux directory, and everything works fine.
When I restore that backup, however, the game's audio is very distorted, slow and choppy, and I can't figure out how to stop that from happening. The weird thing is that if I don't .tar.gz the directory, i.e., if I just copy .PlayOnLinux to my desktop, let POL go through it's initial setup again, and then re-copy the entire .PlayOnLinux directory back into my home folder, everything launches without a problem, and the sound is perfectly fine.
I'm wondering if this means that turning the whole thing into a .tar.gz is causing some kind of data loss that I can't see. I'm kind of new to all of this as I've only used Linux casually for a little while, so I don't know if what I'm saying is making any sense; apologies if it isn't. Is there a way to do a FULL backup of the .PlayOnLinux directory, so that it can be restored later EXACTLY the way it was initially? Thanks in advance, I've been kind of pulling my hair out with this for a day or two.
EDIT: Holy crap, I just fixed it. For anyone in the future who may have this really random issue, I fixed it by using this command in the terminal instead of using the Archive Manager program: