The Transcend SDHC memory cards are very good, and use the same memory supplier and many other brands.
The brand name, that is all.
San Disk and Maxwell are popular brands of 4GB SD Memory Cards. Sony, Elite Pro and Kingston are also popular brands for the Memory Cards. You can check them all out on eBay.
The Transcend 16 GB SDHC is large, but you can also get 32 GB SDHC cards for your camera.
Sans is one of the largest memory card brands as well as Kingston.
Companies such as SanDisk have produced a range of computer memory cards. Similarly, companies such as Samsung, MaxRam and Sony sell computer memory cards.
Per megabyte, it is more cost-efficient to purchase larger memory cards. It's not necessary to buy well-known brands.
Samsung memory cards seem to work better than the generic brands, but they do cost about twice as much.
Sony is a very good company which sells good memory cards. They come in 8 Giga Bytes, 16 Giga Bytes and 32 Giga Bytes. They also come in a larger capacity but they are not popular. Best Buy and Walmart carry Sony digital camera memory cards.
Different brands and models of memory cards have different reputations, use different materials, and have different definition (SD v. SDHD), that is why memory cards of the same capacity have varying prices.
Amazon wants $15 for a 2 pack of Sony PS2 8 MB cards and $10 for a single black card. Others brands of memory cards for the PS2 are much cheaper with more memory like 2 32 MB cards for $10
Turtle Bay sound cards are much more favorable than SoundBlaster cards, and are at roughly the same price point.
If you own a digital camera, there is a good chance that you could benefit from an SD memory card so that you can take more pictures. Many camera brands manufacture their own memory cards, but it may help to look for lesser known brands that are available. You may be surprised to know that you can save a lot of money on lesser known brands and be able to get a bigger memory card.