normally a generic case would need no "runners" to attach a cdrom/dvdrom drive, its just a case of slide in, screw two screws into each side and bobs your uncle.
if you find you need runners then you have probably got a branded computer case (dell, hp, compaq) etc... if so then a browse around these sites may pay dividend.
if you are reffering to plastic runners about ½inch high, five inches long then let me know, i did have some but may have thrown them away. i will look in the morning and let you know if i have them. if so you are welcome to them FOC.
Off work today so will see if I can identify what make the case is. There are no badges etc on it.
Runners you mention sound very similar. The ones on my R/W are metal and you actually attach those to the drive. It then slides in and clicks into place. It's the first time I have seen a set up like this cos as you said its usually just a matter of securing with screws. Havent seen anything like it on the web not even ebay.
Sorry , the Mesh version is a complete tray sort of thing I believe, you fix your drive in the tray and slide it in. There are holes in the wings to lock it in tight with screws, when Mesh remembers to do it that is.
clarki63, if you click on the envelope at the side of my name and send me a blank e-mail with the subject as runner, i will e-mail you a photo of the runners i have found, if you think they are right then i will send them to you.
they are 6½ inches long (165mm)x 5/8" wide (16mm)x 1/8" thick (4mm).