For Gabriel Knight 3, it isn’t a problem to install from the physical CD and then run the game with the image. It doesn’t complain about the source/paths being wrong. With Quake 2 though, it is an issue. Nothing loads or plays correctly. Especially the redbook audio.

I’ve checked through the files and the registry editor to see if I can change the source/drive letter, but can’t find anything. So I’m not quite sure what to do with this one.

I install from a networked drive and haven't seen that issue. Is the Disc mounted directly on the System in question?

Unless the rips are done wrong, or there is some form of copy protection as long as your CD is mounted at the same drive letter it was installed from I do not think there should be these issues normally.

some things I'd like to know

- operating system
- virtual drive brand and version
- have you verified the disc image if iso 7-zip can do that

Some games require the virtual drive letter to be before any other optical alphabetical address to work

I assume from previous comments you are storing your images on a second drive. Can you make a fresh image directly on the OS drive and use that to install a game? To rule out any shenanigans in the underlying storage

If that works then copy one of the "non working" images from the secondary drive to the OS drive and see if that works

I figure something will pop up during testing. If all fails then the software is probably bugged out and needs to be reinstalled.

Shagittarius wrote on Yesterday, 22:56:

I install from a networked drive and haven't seen that issue. Is the Disc mounted directly on the System in question?

Unless the rips are done wrong, or there is some form of copy protection as long as your CD is mounted at the same drive letter it was installed from I do not think there should be these issues normally.

I networked drive? Like what DaveDDS suggested to me where you use a local network between the retro PC and the main PC? Or is that something different?

Well, to make sure, I re-created the image on my main PC with Imgburn. Everything seems to be in order. I’m also not 100% if the Quake 2 disc has copy protection. I’m not even sure about GK3’s first disc, though I did try CloneCD with that and still had an issue during install.
If I install Quake 2 from the physical CD then the drive letter will be different. And yet with GK3 it doesn’t seem to be an issue; it accepts the mounted image when loading/playing. But for Quake 2’s image, the installer goes far too quickly.

I can’t reply to the other posts yet as I’m about to head to work, so I’ll answer the other questions later.

zapbuzz wrote on Today, 03:41:

some things I'd like to know […]
Show full quote

some things I'd like to know

- operating system
- virtual drive brand and version
- have you verified the disc image if iso 7-zip can do that

Some games require the virtual drive letter to be before any other optical alphabetical address to work

OS: Windows 98 SE.
VD: It's the one from Alcohol 120%. It's listed as an SCSIVAX CD/DVD-ROM
Quake 2 has redbook audio, so it's a BIN and CUE file. Not sure if 7Zip can verify those...?

It's set before the physical CD drive. It's G and the physical, H.