> Please make sure that DMA is enabled for the optical drive. (Right click on 'My Computer' --> Properties --'Hardware' tab --> 'Device Manager' button --> Double click on 'IDE ATA/ATAPI controllers' --> Double click on the IDE Channel that has optical drive connected to --> Select the 'Advanced Settings' tab --> Transfer Mode field should be set to 'DMA if available').
> Jumper setting. If you have two devices on the same IDE cable, then you need to make sure the jumpers on the back of the drives are set appropriately.
You will need to set one of the drives in MASTER mode and the other one in SLAVE mode. The drive label on the top of the drive should indicate which is the MASTER or the SLAVE mode.
> If the behavior (both video and audio choppy) is consistent with both drives, the problem may be with the system configuration. If the above recommendation doesn't make a difference, you may need to start changing the system configuration. Please, also try to keep your hard- and software up-to-date ( main board chipset, IDE/SATA etc)
> The general system slow down could be related to system memory getting low. Please also check available memory from the same task manager window.
> Try to update the optical drive to latest firmware
