I've related this experience before, but will comment again. I think honesty and being up-front is the best route.
Just last month I was going through several boxes of 3.5" floppy discs disposing of old stuff. Part of the lot were two sets of disks for ancient Microsoft compilers from over 30 years ago.
I got that software when applying for a position as a DBA/developer and was asked if I knew a certain programming language. My honest response was 'No, but I will by the time I start working for you'. Three weeks later I was on the job and began supporting numerous application programs with my new 'skill'.
As an aside, I had no idea that there were even drives available for floppy discs any more, but sure enough, I found a USB version for twenty bucks.
Further, what I found is that after 30 years of storage, many of the hundreds of discs are no longer readable. Many had to first be run through a 'quick format' followed by a full format, and probably 10-15% failed completely.
New problem: Now what the heck do I do with all of them?
This also raises the question of how reliable our digital storage media might be for long term archiving. My solution has for some time been NAS bulk storage because of the pretty limited capacity of CD/DVD devices. I've been digitizing old family photos that are approaching 100 years in age, and 35mm slides that are 50 years old, but one wonders how long these might last for future generations. In TIFF format, the files are 'UGE'.
Disaster Recovery = Backup ( Backup ( Your Backup ) )