OK, I have some audiobooks with a missing tape. Now, I have a second copy of them, and I want to complete them. Where I work, we actually sell 90 minute tapes, but the Math doesn’t add up on some them to figure the length of them all. The only thing I can figure is that need 120s, and unfortunately, the only places I’m finding those is for high prices online which aren’t worth the trouble. Is there any way to tell the length of a tape? Is there any place that might still sell analog audio tapes? There’s got to be an easier way to do this.