1/ If the copy on CB+ is microfiche, it's probably the only copy available.
2/ I found myself wondering why scans from Miicrofich are so bad.
I couldn't find a definitive answer, [I know it is related to the size of the microfiche image] but what did surprise me, was that scanning to microfiche is apparently something that people do a lot of.
Here is an article and a video for anybody interested.
Microfiche Scanning FAQs
https://www.youtube.com/watch?v=gMpiZTiW_Ok
Microfiche Scanning: 6 Frequently Asked Questions
https://bmiimaging.com/blog/microfilm/microfiche-scanning-questions/
Note this, [The first option for digitizing your microfiche records is to purchase a contemporary microfiche reader/ scanner. With this option, you’ll still be dependent on a piece of hardware equipment. However, there have been a lot of advances in the newer versions of reader/ scanners: they‘re less clunky and bulky, have more control settings, and are more user-friendly than the units of the past. You’ll be able to view, print, and scan your records in small batches. If you have a larger collection, then you’ll need to look at other alternatives. ]
cheers!
Link to the book:
Feature Comics 033 (fiche)