Got "Permission denied" running a binary from CD-ROM

I was trying to install QNX SDP 6.5 from a CD-ROM, like below:

$ sudo ./qnxsdp-6.5.0-201007091524-linux.bin

But got this error instead

sudo: unable to execute ./qnxsdp-6.5.0-201007091524-linux.bin: Permission denied

To fix, do:

$ sudo mount -o remount,ro,exec /media/cdrom0