Brandless Webcam - Installing Corrupt Drivers Harmful To Pc?

basically i got this very old and cheap brandless webcam, it came with a mini-cdr which holds the drivers, when i place the mini-cdr into my dvd drive, it made a load ###scccrreeeaaaccchhhing### noise, then the installer runs and i got the error shown in the top of the pic, as i continue the installation i got another error, shown at the botton of the pic, now i know maybe the disc is corroupt or something, so i decided to use device manager to install the drivers manually.

when windows did found the driver on the disc, it turns out to be a notepad file, which was strange, but i continue to install anyway, but windows pops up a message saying the driver isn't signed or could be harmful or something like that, i cancel the installation and uplugs the camera. i thought it made sense since the mini-cdr could actually be a coaster or a badly burnt disc, as the installer states there's an error, but should i try anyways? i was thinking if i click yes when device manager ask me and continue to manually install the drivers would i damage my pc? when i place the mini-cdr in my dvd drive, it made a very load screeeeaachhhing noises, did the disc damage the lens or the drive?