Hi everyone,

Remember my previous post where I was talking about the LiteOn iHAS524 C and mentioned the different optical pickup units this model use across its different revisions? Turns out that the SF-DS1XD OPU used in the iHAS524 B was having trouble burning DVD+R DL, so I began my search for a used iHASx24 drive from the A revision.

On Friday, I got a used LiteOn iHAS124 A delivered. This model use the SF-DS19L OPU that all LiteOn iHASx24 use (x being a number from 1 to 6).

The LiteOn iHASx24 series are all the same, except that the iHAS224, iHAS424 and iHAS624 has the hardware for LightScribe burning, while the iHAS124, iHAS324 and iHAS524 doesn’t. Other than that, the hardware is identical but they have different firmwares. The capabilities between models are the following:

• LiteOn iHAS124: Base model.
• LiteOn iHAS224: LightScribe.
• LiteOn iHAS324: SmartErase.
• LiteOn iHAS424: LightScribe and SmartErase.
• LiteOn iHAS524: LabelTag and SmartErase.
• LiteOn iHAS624: LightScribe, LabelTag and SmartErase.

Basically they have a different firmware enabling LightScribe, LabelTag and SmartErase depending on the model you have. Even if you have a different model, the firmware can be crossflashed by using some tools and firmware. I will not be covering that here, but it’s good to know if you’d like to add some features to your drives. The only feature that depends on hardware is LightScribe.

My LiteOn iHAS524 has been with me since 2010, and it’s probably the best CD and DVD burner available given its ability to overspeed 16x media to 20x. It also has HyperTuning, Online HyperTuning and SmartBurn, which are essential features to burn media with great quality. This is why I still count on this drive as sometimes I like to store data on optical media.

The drive had its optical pickup unit changed to the SF-DS1XD some years ago because one CD broke inside the unit, damaging the original SF-DS19L. I also didn’t use DVD+R DL media, so everything was fine, until last week. It turns out that the OPU had problems burning the discs. Specifically, it had problems focusing on the second DVD layer, failing at 50%. This is why I brought the used LiteOn iHAS124 A drive.

Because this unit is an A revision unit, the hardware between the iHAS124 and iHAS514 is the same. I did changed the iHAS524 disc mechanism to the one from the iHAS524 C revision, with the exception of the OPU:

On both photos, the iHAS524 is on the left while the iHAS124 is on the right.

Here we can see the disc mechanism from the iHAS124 unmounted:

And the Optical Pickup Unit taken out of it:

I’ll be using this OPU in the original iHAS524 mount, so I placed it there:

And finally, here’s the disc mechanism attached to the iHAS524:

The OPU started working immediately. It is now loading discs faster and wasn’t making weird noises. I was also able to burn some DVD+R DL media without issues. I’ll be talking about that on another post, but for now, this is it.