My students had several math discs that they put in and removed from the computer on a daily basis, which caused scratches on the original discs with normal but frequent use. I used these blanks to make "working copies" so they could scratch them in place of the originals. Captured images at up to 48x speed, although I personally prefer to throttle back to 24x speed to be on the safe side for data integrity reasons. permanent marker. Everything works fine and buying 20 discs for less than $5 completely met my needs.
π Smartbuy 700MB/80min CD-R Blank Data Recordable Media Discs - Pack of 100, 52x Speed, White Top
10 Review
High-Quality Philips 16X DVD+R Media 50 Pack π - White Inkjet Printable - Versatile Cake Box Packaging (DR4I6B50F/17)
10 Review
Verbatim 4.7GB DataLifePlus DVD-R 50-Disc Spindle: White Inkjet Printable with Hub Printable - 16x Recordable Disc (95079)
10 Review
Sony 8cm DVD-R Double Sided Hangtab 3-Pack 3DMR60DSR1HC
11 Review