Opened several decades ago, with 31 discs remaining. I haven't used them in a long time and have been storing them at home. It's a waste to leave them unused, so I'm putting them up for sale. I appreciate your understanding. TDK 4.7GB DVD-R, ideal for data storage at 1-8x speed. - Brand: TDK - Type: DVD-R - Capacity: 4.7GB - Writing Speed: 1-8x Thank you for looking.