Q1) Does DOSBox support the IBM XDF Floppy Disk Format ?

Reason: It is required to install IBM PC DOS v7.x (With Stacker 4.x)

Disk 1 is a standard 3.5" FDD formatted to 1.44 million bytes, but it contains a TSR called XDF.COM (from memory) that enables the rest of the installation to continue, reading 3.5" diskettes, but formatted at around 1.83 million bytes.

I suspect it was to reduce piracy, or maybe just reduce distribution costs (It makes the install 1, maybe 2, disks smaller to package, but XDF read/write speed is much slower).

I posted this in the general forum because I feel it isn't specifically code / developer related, and an experienced 'non-Dev' might just happen to know the answer.