"Walter Reinhold"... In database all okay: it's number 1147, but in which shelf is the damned film? Difficult.
I have to look and search for a long time. Find it after hours or never. This sucks.
Personally, I store my movies in large books. Each book has an alphabetical label while each slot has a numerical label. So, a movie with the 'Location' A119 would indicate 'Book A - Slot 119'. Each disc has a tiny label that corresponds to it's 'Location'. Yes; it is tedious to number every slot in the book, but finding any movie is a snap! It takes longer to open the database than to pinpoint the location of the desired movie. And returning the disc to it's designated slot is equally easy.
Other members in this forum have reported that they assign their own number to a movie instead of having the database automatically assign one. This too, could be a way of simplifying the search for a particular disc.
Of course, these are only two examples of how you could track your discs. I'm sure that there must be other ways that members choose to keep track of theirs. Not everyone stores their movies in disc format. The trend now seems to be to store to hard drives, but I'm kinda old-school and have learned that hard drives can fail.
Discs stored properly will outlive most hard drives.