These cool guys have saved me a lot of money lately. I teach a regular class that includes a power point presentation and a 200 page textbook that I have written for my students. I suffered losses due to the cost of printing lesson notes. Now I buy them and copy power point and textbook onto one of these little discs before class and give one to each student to take home. I save almost $12 per student and don't have to keep textbooks. If you have a similar application, try it. I haven't gotten a bad one yet.
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