Mirrors:

http://filespace.com/34v175slyxq7/leetb1_1_4k.part1.rar.html
http://filespace.com/lbfujv1e8y6c/leetb1_1_4k.part2.rar.html
http://filespace.com/r1b4fjpdcl21/leetb1_1_4k.zip.html