I'm working on forensics tools and I have Encase E01 type image file. I would like to analyze this image by using other tools. However, those tools such as tsk_recover doesn't accept E01 file type as input. So, I need to convert E01 image file to dd format without any alteration.
FTK Imager from Access Data (http://accessdata.com/product-download) is a free tool that can do many things with several evidence file formats (E01, DD, and AD1), including mounting them logically and converting them to different formats.
You can use it to convert an E01 image to a DD image by: