Originally Posted by symphone
Wow, your suggestion sounds so tempting, maybe I can try.
I'm satisfied with it to my 505, it's portable, tight and can really take a bump, esspecially, it's cool!
What is the size of 500/700? the same as 505?
Exact size with cover on 180 x 130 x 17mm
(This is the size of the 505 without cover on a wiki page, 6.9" x 4.8" x 0.3" (175 x 122 x 8mm))
So perfect size of the box/cover will (more or less) be about 190 x 140 x 25mm.
What is are the exact measurements of your box?
P.S. As far as my suggestion is concerned, the Sony PRS-505 is sold in many countries, so if you opened an eBay account and Paypal account and shipped to worldwide, you could make a nice business!