Issue installing CS4 from Disc

Hi All, I have just dusted off my copy of CS4 and installed it onto my old iMac... I want to use InDesign again, I've installed it onto Yosemite and have the correct Java Runtime SE working. But I have a problem installing from my Disc's... It will only read the 1st Disc, when I get to the point to swap to the second install Disc I get a dialogue box stating that I need to insert the disc with a Cancel and an OK button I can go no further - the disc doesn't auto start and the OK button does nothing.

Is there any way I can get these discs transferred to a hard drive to install? Or is there another solution anyone can come up with?

Many thanks

Paul