Hello, I'm first time in this section of the forum. I'm really interested in building or making a casing of my own or at least modify my current casing as I'm running out of space for Hard Disk. I have a SATA drive and IDE HDD. With a few other HDD and 1 CD-ROM. I really got no idea how to get it fixed into my small CPU. The picture is as follow. Couldn't find a guide on doing DIY HDD/CD ROM Bay. Founded the Cable mangement topic and will follow it this friday after buying all those neccesary stuffs. So here's the pic, hope you guys could guide me. I have 2 Extra HDD Bay but unable to get it into the bay. Pic are Below.

change ur case, is tat htpc case ?

yea I think so, why yea?

that is a very tight fit. either you get a new case or buy one of those external hhd case (that can fit multiple hdd), and external dvd. you can make your own hdd mount but i think the case only be able to house 2 hdd max.