[50 pieces of high-grade non-rewritable Digital Audio 700MB CD-R discs]- Providing superior music and audio recording quality and reliability, up to 80 mins of audio/video content, compared to standard CD-R. They also offer Ideal storage for music files (including MP3, WAV, FLAC, APE, AAC, AIF, M4A, and more) [Noise Free Playback] - Helps prevent sound distortions that create pops and crackles that could ruin the listening experience [True Digital Audio CD-R] - Digital Audio CD-Rs are made specifically for home audio cd recording systems, which require a CD-R that is made specifically for Digital Audio recorders, which these are. [Certified Frustration-Free Packaging] - reduces risk of breakage in transport, plus the reusable spindle container provides long-term, dust-free storage [700MB of Storage with Archival Quality] - Be confident your photos, videos, data files and up to 80 mins of audio/video content will last for decades when stored properly