Whats the difference between regular printable and hub?

[HexiumVII]

There are 2 different ritek i found on meritline that are printable, whats the difference?

[edDV]

printable, usually white matte, will accept an inkjet print on its surface.

http://www.supermediastore.com/prodisc-8x-dvd-r-white-inkjet-47gb-media.html

also in silver surface
http://store.yahoo.com/emediadepot/50pa8xprunsi2.html

Another kind is for thermal printing
http://www.veritysystems.co.uk/cdprinterrimage.htm
http://www.tapeandmedia.com/dvd_r_thermal_printable.asp

[p_l]

Regular printables usually have about a 43mm inner diameter unprintable area...






whereas hub printables have about a 22mm diameter inner unprintable area.

[edDV]

ahh