CBL Data Shredder vs Parted Magic

CBL Data Shredder is a free utility for erasing hard-drive contents so existing and future software-based recovery tools cannot retrieve them. It overwrites the entire disk with bit patterns, with methods using different numbers of passes. Users can choose a pattern and pass count; the default is one pass of “00”. The program implements a described US Department of Defense 5220.22-M method using three passes with different patterns, and also lists VSITR, Bruce Schneier, Peter Gutmann, and Royal Canadian Mounted Police DSX methods. Its Peter Gutmann implementation makes 35 passes. The Windows version functions exclusively on Windows XP, Vista, 7, 8, and 10. DOS packages are available as a floppy disk maker, a bootable CD-ROM ISO, and a USB flash drive creator; the USB creator requires Windows 7 or later. The free download requires submitting a name and email address, and downloading means agreeing to the licensing conditions. The product warns that modern-drive features may leave some areas inaccessible to the software and vulnerable to hardware-based recovery. Its DSX method alone is not approved for sanitizing classified information, and current standards require physical destruction afterward.

Parted Magic is paid, bootable Linux software for managing storage from USB, optical disc, or PXE. It requires a 64-bit x86 processor and at least 2 GB of RAM, and supports UEFI Secure Boot, legacy BIOS, and Intel-based Mac hardware. Its tools securely erase ATA, NVMe, SAS/SCSI, and eMMC/SD drives, choosing methods according to drive capabilities. Successful erases produce signed PDF destruction certificates, with exportable cryptographically signed evidence packs. The maker says sanitization follows NIST SP 800-88 Revision 2 and technology-specific methods conform to IEEE 2883. VisParted handles MBR and GPT layouts, filesystem operations, partition moves, and conversion between MBR and GPT. Parted Magic Clone copies disks, partitions, and images while keeping the source read-only and creating verification certificates. Workflows can use local, USB, SSH, Samba, and NFS targets, plus multicast deployment with udpcast. PM Report Server receives status and evidence over a local network and can send email, webhook, or ntfy alerts. It is not an installable Windows application.