Comment 17 for bug 848659

Agreed.

It *should* be fixed, but it only affects users if:
1: they are upgrading using a CD/DVD
AND
2: the media is bad
(and they have used that media without verifying that the file checksums are good)

Unfortunately, this will be hard to test, as it depends on having media (such as a CD-RW disk) that is bad, that you can write the iso image to.

Given the nature of the failure, I suspect that an install from bad media would also fail with similar symptoms, because the error is being detected by /usr/lib/apt/methods/cdrom (or the installer equivalent) when scanning the package files