I recently bought this card: https://www.picclickimg.com/mV4AAOSwhXtiaisj/ … S-PDIF-PCI.webp and thought I'd found the right drivers, but when it arrived they installed, but didn't seem to work. I'd get "error:80C18002: No acknowledgement from I2C slave", so I presume it wasn't for this version of the hardware, and sure enough, looking at the INF file for it, it seemed to be for the Cinemaster S versions.

But when looking for specifically the Cinemaster C 1.2 drivers and software, they appear to be poorly archived. A lot of driver aggregate sites that just provide a download to their own sketchy "autoupdate" .exe, or simply just have the text of the filename and no actual download. Or they seemed legitimate, but just led to dead links. I've also checked the VOGONS driver library.
I did find one download that worked and looked promising, but for some reason the driver installation won't continue when pressing "Finish" (it just acts like I didn't press it). Looking in the INF file for that, it makes mention of Windows 98 rather than Windows 95, so perhaps that was the problem there.

Does anyone have drivers for this card that they could share? Or even better, the full install CD? Ideally, for Windows 95; I could see mentions for that in my searches, and appears to be the version used in the manual.
It wasn't expensive so I thought it'd be fun to play around with getting my Pentium MMX system DVD-capable, but drivers are always the bane of old hardware exploration.

Many thanks.