We have been using these DVD-RW discs for our Canon DC50 camcorder during the past two years and have always found them very reliable. Being RW discs you can record on them, download the results onto your PC etc and then use the discs again for further recordings. We currently have around thirty of these discs and remarkably not once have we had a problem with them. We have tried to use some other brands of cheaper DVD-RW discs but found them much less reliable, which just goes to show that you get what you pay for.