1. When using a DVD-R or DVD+R disc, use a blank disc (a disc on which no data has been written). Click to DVD ver. 2.* cannot write to a DVD-R or DVD+R disc that already contains data.
2. Data cannot be added to a DVD disc on which data has already been written to the media and do not use discs with labels attached to them. (Doing so may result in a writing error or malfunction.)
3. Click to DVD does not support writing to DVD-RAM.