The band officially recorded 94 songs between 1968 and 1980.
The string suggests:
This era represents the band at their most ambitious. Led Zeppelin IV is a masterclass in layering. In high fidelity, the legendary "Bonham Thump" at the start of "When the Levee Breaks" sounds like it’s happening in your living room. Led Zeppelin - Discography -1969-2007- -FLAC 24...
That string describes a bootleg that either does not exist or is technically fraudulent. The band officially recorded 94 songs between 1968 and 1980