I've been looking around the Web for reviews of write-protectable storage. I need it as a faster/modern alternative to DVD discs to ensure virus-resilience and inadvertent or malicious modification of data by untrusted machines where I use my USB flash drive. So far I have only found 3 alternatives: Netac, Kanguru and Sandisk Ultra SDHC. However, I don't know how their speed compares to each other, and what the other alternatives are. A leaderboard and reviews of write protectable storage would be highly appreciated.