Error 500 (0x101F4) reading sector, but image test ok?

[Hase]

Hello,
while imaging a 40 GB Notebook HDD (Samsung X10 with Toshiba MK4021GAS, one partition C and one very small EISA fingerprint partition) with ACRONIS 7 (Oktober 2004) and a external USB 2.0 drive (Teac), task stopped at 80% progress level with error code

Error 500 (0x101F4) cannot read sector 64.494.235.

Retry failed, so I choosed to ignore and image continued. Ex Post image test was ok. May any problems occure in case of image recovery back to HDD?

Thanks in advance
C