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Old 08-10-2023, 12:28 PM   #24
DNSB
Bibliophagist
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Posts: 47,204
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Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
Quote:
Originally Posted by HLS View Post
i don't bother stripping drm. It stopped working on all platforms and it's too time consuming.
Interesting. I import the books into calibre and the DRM is removed. It did take about 5 minutes to configure the plugin but I really don't see any delays during the import process. Admittedly I am only removing DRM from 6 possible platforms.

I dug out my notes from when I did a quick test importing a mix of 400 epub and Amazon ebooks into a new calibre install in a SUSE Tumbleweed Linux VM (copied the calibre setup from another VM and then snapshotted the install to save time). The difference between the time I started the import and the end of the import for those 400 ebooks with and without DRM being removed was approximately 8 seconds averaged over 5 runs for each. So approximately 20 milliseconds per book additional time. That is truly time consuming.

BTW, the main reason for doing this test in a VM was that I could revert to the snapshot after each test so I had a consistent starting position.
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