This is a great product, especially since it has a 4 1/4 inch window. This allows all the text you put on the DVD/CD to be seen when the disc is placed in the envelope. Until I found these, most envelopes I obtained only had a 3 7/8 inch window. After a fairly extensive search, I found my order for 1000 envelopes had by far the best price at well.ca compared to other companies. They also provided excellent tracking right from the time the order was received by them.