"Fedora core cd not found"

Hey,
	Hey I have Fedora install problem. After I have stated the install and after I choose the language and keyboard I get a screen that asks what kind of media contains the packages to be installed? I choose CDROM but after a few seconds I get a message that says Fedora Core CD not found?

	How do I fix this, I did the core 2 download and the ISO's have a good MD5. When I hit alt-F4 I see a message that says "hdc: media error (bad sector) status= 0x51 {DriveReady SeekComplete Error" and another line "hdc: media error (bad sector) error = 0x30"

	I have burned the CD twice under MAC OS X. Is this the problem, do I need a special program to burn them under Mac ( I just used disk utility) Any Ideas?

Thanks
Josh

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