The proprietary format originally designed by Guidance Software (EnCase), now a universal industry standard.
FTK Imager 3.4.0.1 is a – a reliable, no-cost tool that still works for basic imaging and preview tasks. However, for modern forensic work (memory capture, logical imaging, cloud evidence), you should upgrade to FTK Imager 7.x (still free) or consider commercial tools. Keep version 3.4.0.1 in your toolkit as a fallback for old images or low-end hardware, but do not rely on it as your primary acquisition tool. ftk imager 3.4.0.1
Maximum compatibility with third-party tools. No compression. .E01 Keep version 3
Version 3.4.0 and its sub-versions (like 3.4.0.1) include improved drivers for mounting forensic images as read-only local drives for easier analysis in other tools. Performance & Usability FTK Imager is highly regarded for its speed and reliability for modern forensic work (memory capture