But then there should be something in the data stream at this position. And the hidden content must show up in the EAC ripped file, if you play it as a whole.
I read this once … although I really think 300dpi will hide no details. I do 90% JPG, but 80% would not make it much smaller compared to 25% of the pixels.
On 1200dpi you can see tiny offsets of the print pattern. And every dust particle is enlarged to a monstrous rock. I try to clean every item carefully, but mostly it gets worse.
I don’t miss details on my scans. It’s mostly information on texture what’s lost. Or if it’s thin or thick paper, is it glossy? (what does plasticized look like?)
I’ve tried such things on the above Arcade Fire cover - without any success. My scanner not only causes colorful patterns on reflective areas. Reflections originate of the single LED elements on the scanning bar and are reflected as separate light sources. So there are stripes or a line of circular reflections. Nothing I managed to edit out with scans from different angles. 
EDIT: … I have to reverse my complaint about lost texture. Right now I’ve inspected the scan images of the booklet of Arcade Fire’s Neon Bible box edition provided by @Fabe56 and the difference between my plain paper print and the “plasticized” booklet are clearly to be seen. You would not know, how the physical object looks like, but you clearly see it’s different. 
(I will keep scanning 600dpi resolution, in case… 
)