Plan Your M-Disc Cold Backup in Seconds
For individuals, small studios, and archivists who need reliable long-term optical storage. Enter your data size, disc capacity, price, and redundancy to get an instant bill of materials, total cost, cost per TB, and capacity utilization — no spreadsheets required.
Results update live as you type — no button needed. The Example button fills a sample input.
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Why use M-Disc Backup Calculator?
Instantly calculate the exact number of M-Discs needed for your dataset
See total cost, cost per TB, and capacity utilization at a glance
Model redundancy strategies with multiple copies for archival safety
Compare disc capacities and prices to optimize your budget
Get a clear backup plan summary ready for purchasing or reporting
FAQ
What is an M-Disc and why use it for cold backup?
M-Disc is a write-once optical disc designed for long-term data archiving. It is resistant to temperature, humidity, and light, making it ideal for cold storage where data must remain intact for decades without power.
How does the calculator handle redundancy?
The redundancy copies input multiplies the required discs. For example, 2 copies means you need twice the number of discs to store duplicate sets, ensuring data safety if one set fails.
What is cost per TB and why does it matter?
Cost per TB shows the price of storing one terabyte of data. It helps you compare M-Disc backups against hard drives or cloud storage and budget for large archives.
Can I use this for Blu-ray discs other than M-Disc?
Yes, the calculator works for any optical disc if you input its capacity and price. However, M-Disc is specifically recommended for archival longevity.