Secondary Storage ~ Flash drive & Blu ray discks

Blu ray http://en.wikipedia.org/wiki/Computer_data_storage

http://en.wikipedia.org/wiki/DVD

http://www.ehow.com/list_6644477_advantages-disadvantages-blu-ray-disk.html

http://www.ehow.com/list_5905238_advantages-disadvantages-dvd-rom-disks.html

http://electronics.howstuffworks.com/blu-ray2.htm

http://www.blu-raydisc.com/en/Technical/FAQs/Blu-rayDiscFormat.html

http://www.foxtel.com.au/discover/products-features/hd/hd-glossary/default.htm

flash drives

http://homeworktips.about.com/od/computertips/qt/flashdrive.htm

http://en.wikipedia.org/wiki/USB_flash_drive

http://www.articlesnatch.com/Article/How-Does-Blu-ray-Disc-Work/832150