I suspect that neither the Asus CRW-5224A nor the Lite-on 832S remains available for sale.
However, the Asus CRW-5232A remains available and has exactly the same characteristics as the CRW-5224A.
Before shelling out for one though, you should be aware of a number of pros and cons-
[li]Very accurate reader (can accurately read pre-gap of safedisc protected cds)
[/li][li]Very fast error skipper where errors not consecutive (i.e. safedisc)
[/li][li]2 sheep efm writer (can produce back-ups of safedisc protected cds that will work on majority of drives)
[/li][li]Good dpm analysis for securom protected cds (but at low speeds)
[li]General write quality is inferior to that of many other drives especially at speeds higher than 16x; indeed write quality generally is relatively poor at higher speeds unlees premium quality media is used and even then general write quality is likely to be inferior to that of other drives
[/li][li]Drive is not supported or is partially supported only by some applications (e.g. fireburner)
[/li][li]Whilst it can produce copies of safedisc 4 protected cds that will work in the majority of drives, they will not work in the Asus itself
[/li][li]Will only rarely permit the installation of a securom protected game or application from a twinpeak copy (though it will enable you to play from the twinpeak copy once installed)
[/li][li]Is unable to read discs burnt with certain applications (e.g. fireburner)
If you are thinking of buying one, I strongly suggest that you couple it with an ordinary dvd rom drive (preferably a Lite-on as Lite-on dvd roms are extremely tolerant of back-up copies) from which you can run your back-up copies.