DVD-R 8x Thats/TDK/Fuji brand TY @ 0.56~0.63 USD/DVD depending on brand when bought in 50pcs Spindle. (most of the time I buy these)
DVD+R 8x TY @ 0.78 USD/DVD when bought in 50pcs Spindle from online store (+ 7.7USD for delivery when order is under 91USD).
At normal shops a 10pack where each disc is packed in jewel cases @ 0.81/DVD.
In Japan TY DVD+Rs are only available in 10packs at normal stores. To buy 50pcs Spindle you have to order from a online store which re-imports TYs from USA and Asian countries.
CD-R 700 MB Thats/TDK brand TY (2-48x) @ 0.28 USD/CD (I usualy dont buy these)
CD-R 700 MB Thats (original TY brand) low speed (special tuned for 1x burning but rated 1-32x) @ 0.93 USD/Disc when bought in 100pcs (I usualy buy these because i use old CD burners)
Normaly Discs are sold in 10 or 20 pcs each disc packed in Jewel case or in 10/20/25 or 50pcs spindle cases. 100pcs MIJ discs in spindles or shrinkwrapped are very rare. When buying 100pcs or 300pcs of MIJ discs I usualy get a carton full with 10pcs packs x10 or 50pcs spindle x6 but price per disc stays 99% of the time the same as when only buying one 10pack or 50pcs spindle. Also most of the time Online shops charge more than normal shops in Akihabara.
About Gold/Gold CD-Rs:
MITSUI GOLD(R) Professional (Pro use high quality) (Gold/Gold MIJ) @ 3.34 USD/CD-R when bought in 50PCs Spindle (total 167 USD). Out of production. Only some stock left.
MITSUI GOLD AK200PX0A (normal quality) (Gold/Gold Made in USA) @ 1.88USD/CD-R and are sold in 1 or 10packs in Jewel case package. But many users in Japan who loved the old Mitsui CD-R Gold/Gold MIJ hate these American made ones because quality is too low compared with the (old and professional) MIJ ones.
In the past (about 7 years ago) I used to buy Kodak Gold/Gold for 0.9 USD/CD-R and Mitsui Gold/Gold (normal quality) MIJ for 1 USD/CD-R in 10 packs (both are unavailable now). From time to time TDK offers a limited amount of Gold/Gold CD-Rs at there official online store (last time it was 1500pcs of 63 min CD-Rs and price was 4.55USD/CD-R and 2-3 days after introduction they were sold out and I could not get hold of any... :sad: ).