Exploring the Commodore 1581: Partitioning, Easter Eggs, And More

A patron asks about partitioning sub-directories on the Commodore 1581 disk drive, and I take the opportunity to show several other aspects of the drive: easter eggs, bugs, utilities, and software I bought on 1581-format disks.

Commodore Cave:    • Commodore Cave - 1581 Floppy Disk Drive  
Amiga Love:    • Commodore 1581 Floppy Disk Drive: A B...  
User's Guide: https://archive.org/details/1581Users...

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Ending music is an unreleased instrumental version of "You're My Favourite PET" by Bedford Level Experiment: https://bedfordlevelexperiment.bandca...

Index:
0:00 Intro
1:02 A bit of info on the 1581 disk drive
2:51 Formatting a blank disk
4:46 The partition command
9:48 Entering the partition, and formatting the sub-directory
13:20 Easter eggs in the 1581
14:47 Datasette + 1581 incompatibility
16:28 1581 ROM revisions
17:43 Looking at the Block Allocation Map
20:04 Software on 1581: The Software Guild, Mailink on Disk, Bible Search
22:32 Loadstar Magazine
24:45 Thanks, credits