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Lite-on SmartErase

A project log for Sustainable optical media data destruction

This project is an overview of available options for safe data destruction on optical media without physically destroying the discs.

benasBenas 12/27/2023 at 20:240 Comments

Below is a short experience description with the Lite-on SmartErase.

Going by Lite-ons' website only drives IHAS324, IHAS424, IHAS524 supports SmartErase feature. These drives are pretty much unobtainium, but... When looking for supported hardware I came across this blog post: https://moisescardona.me/the-liteon-ds-8a5s-supports-smarterase/  by Moisés Cardona. Here he tries out Lite-on DS8A5S and it seems to support the SmartErase feature, although not specified by Lite-on.

This drive was commonly in various brands of laptops. With this in mind I have managed to obtain 10 drives for 2 Eur/each from a laptop recycler - awesome.

One note on hardware - laptop optical drives uses Slimline SATA connector, which is not physically compatible with the regular SATA connectors. Data part is compatible, but power side is not physically and electrically compatible. Thus this drive, if used through USB, requires a Slimline SATA to USB adapter.


Same as with E-hammer, SmartErase has two options - Quick Erase and Full Erase. Quick Erase seems to be identical to E-hammer, where only the Lead-in and Lead-out are deleted. Full Erase processes the whole disc surface. Whole disc surface gets "overwritten" with a pattern which looks like a vinyl record when viewed against a light source.  SmartErase software works well on Windows 10+11

Full Erase of a CD takes around 3 minutes and does not depend on the amount of data on the disc - it still processes the whole disc. Thus if many discs, with small amount of data on them, needs to be destroyed than Asus would generally be a better option.

With Lite-on drive different types of DVDs were processed correctly. DVD-DL included.

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