Text only compressed is even less, in the 10-15GB range. I used to have it on an SD card and used https://www.rockbox.org/tracker/task/4755 https://www.rockbox.

Text only compressed is even less, in the 10-15GB range. I used to have it on an SD card and used https://www.rockbox.org/tracker/task/4755 https://www.rockbox.org/tracker/task/4755 to put in on a cheap media player.