Given the many reports of MalFormed Marvin DB's here & other forums, I offer the following -----
For Windows 7 32/64 Calibre users out there wanting to BackUp your iPad's Marvin "Book Records"
composed of two key parts:
A= "mainDb.sqlite" , a single small file {
4.2mb in my case for 2,246 books}
and B= a matching set of individual book files {
2,246 books (collection) in my case totaling 4.67 gigs} ........
There are a number of freeware (e.g. iFunBox) & shareware Windows progs available to access & transfer Files & Data, TO & FROM one's iPad vs LapTop \ DeskTop, quite quickly. **1
Besides routinely Backing Up my "Window's Calibre Book Library"
every time I alter it, I am now also backing up my iPad's Marvin library with DiskAid sw so that
within minutes, I can restore my iPad \ Marvin DB if & when I get another "communication error; database is malformed" complaint from Calibre upon iPad connection!
In my case, using DiskAid on two Marvin App paths, a BackUp to my PC takes under 5 minutes: Copy "mainDb.sqlite" database file from 'Apps\Marvin\Library'
and the complementary books "collection" from 'Apps\Marvin\Library\Documents' (folder contents). **1
If & when a restoration is required, simply reverse [overwrite] per the prior paragraph. **1
**1 -
Marvin must be closed!
Lastly, Use google for clarification & further detail and another Thank You to ShellShock!
