Recorders

Tape recorders are useful teaching aids.

Japan's Toshiba Corporation effectively ended the format war over the next-generation DVD players after announcing this week that it would no longer manufacture HD DVD players and recorders. The announcement paves the way for rival Sony Corporation's Blu-ray technology to become the industry standard for high-definition video.

Kaplan says the low cost recorders can revolutionize how and how often we monitor reefs, and how we determine their health. He says this tool can help gather critical information, regulate boat traffic and even aid in rebuilding the reef ecosystem, by broadcasting sounds that will attract new denizens.