Product DescriptionThe Memorex CD-R is a write once, single sided disc. It provides 700 MB of space, which translates to eighty minutes of audio recording time. You can use this disc in 1x - 52x write speed compatible writers. Remember that you can use this disc only on a computer CD writer. A one-year warranty protects you against defects in the near term, while the discs' rated archival life of 70 to 100 years means you can rest easy about the future of your data.Amazon.comThe Memorex CD-R is a write once, single sided disc. It provides 700 MB of space, which translates to eighty minutes of audio recording time. You can use this disc in 1x - 52x write speed compatible writers. Remember that you can use this disc only on a computer CD writer. A one-year warranty protects you against defects in the near term, while the discs' rated archival life of 70 to 100 years means you can rest easy about the future of your data. What's in the Box 50 pack spindleFrom the ManufacturerMemorex CD-R offers 80 minutes of audio recording time or 700 MB of data storage, available in 1X - 48X write speed compatible and can only be recorded on a Computer CD Writer. Memorex offers a large variety of pack sizes, ranging from 5, 10, and 30 pack slim jewel cases or 30, 50, and 100 pack spindle configurations. All CD-R discs are 80 minute/700 MB discs that are up to 48X drive speed compatible. Ease of use, quality, convenience, and value are only a few of the many reasons that have made the CD-R the most popular blank media available. To this day, more people choose the brand name that set the standard for CD-R media -- Memorex. This is a 100-pack spindle of CD-Rs.