This thread
https://www.mobileread.com/forums/showthread.php?t=90748
This was the most relevant post..............
"The ALP never could read the B&N DRM pdb or their new ePub DRM.
B&N just added DRM ePub to their line up BUT the DRM is not ADE ePub compliant.
So for B&N The JB-Lite reads DRM pdb and the JB with .35e FW reads ADE DRM ePub/PDF as well as B&N's new DRM ePub - not sure about pdb DRM.
In .35? they also added Text Flow on/off for PDF viewing and ePub now has active TOC just like PDF had. ePub lost access to dictionary look-up and find.
all the units can access DRM free ePub.
The JB and the ALP are the same physically so they both have a clock in the o/s.
If you want unlimited rental time on an ADE epub ebook just remove the DRM after the download.
Both the JB w/FW .35? and the ALP can support most Public Library ebooks because of ADE and Overdrive support.
Right Now the JB with FW .35e supports more formats, includes a limited dictionary and gives you active TOC support w/ePub docs that have that feature defined. The ALP does not as of this post..............
Or you can read through this monster.
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https://www.mobileread.com/forums/showthread.php?t=63092