CD-R/DVD markers are specialized pens used for writing on the surface of CD-R (Compact Disc Recordable) and DVD (Digital Versatile Disc) media. Here are some key points about them:

• Permanent Markers: These are usually oil-based and can write on various surfaces. They are not recommended for CDs/DVDs as they can damage the disc.
• Water-Based Markers: These are safer for discs but may smudge if not allowed to dry properly.
• Specialty CD/DVD Markers: Designed specifically for writing on optical discs, these markers typically use non-toxic, acid-free ink that is safe for the disc surface.

Features:

• Non-toxic Inks: Many CD/DVD markers use non-toxic inks to prevent damage to the disc.
• Quick Drying: These markers often dry quickly to prevent smudging.
• Fine Tip: They usually have a fine tip for precise writing.