LOL, anyway:
A SD video rip size depends on which container you package the file in, people who get large SD video file sizes are doing it wrong, for example a single layer DVD is only 4.7GB and can hold around the same as a 90min VHS tape.
A VHS backup system could reportedly store 4gb of data on a standard VHS issue tape.
The largest HDD size in 1997 was 16GB and basically unattainable (from memory, yes some of us are of the age who had PCs at that time), the standard HDD size was something between 1 and 4GB IIRC.
With the above in mind backing up and managing the texture assets the random YouTube comment alludes to would be extremely challenging and given the speed of PCs and the resolutions of the day somewhat pointless.
Happy to be shown otherwise, so look forward to you digging up some proper evidence for the claim.