My experience in supporting part was bad but it was worth learning how to see the story:
SD cost me 1/4 of the price of PC3000UDMA
as soon as the product arrived I was faced with outdated software and recorded in a common media such that cost 50 cents to get worse and a printed manual with low quality ink with a stapler and stapled hand, the instructions were the following sentence "we are not responsible for damage or other damage caused by misuse of this equipment and software do not provide any instructions ATA command the brands x, y and z" the manual was 16 pages
on DVD there was only firmware modules of useful templates hds that almost never caught for maintenance were actually 40, 60 and 80GB
. The main function of HD Doctor suite of SD is to rewrite modules firmware and basically anything else described many of the functions do not work on all models of hard drives ha and an important detail they do not have a database of online firmware as PC3000, my recommendation is that if you buy a suite of SD, to buy it for learning purposes and not professional because they depend on the tool would be a way you can get stuck on a problem for months
. Good by my experience is that after playing a lot with some of the hidden functions of these tools figured out how to write my own software and support today use these tools very little since my software works very well
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I think the PC3000 is the best option but see that rewrite firmware is no big deal since 90% of hard drives does not require this type of defect but errors SMART, badblocks, natuaral wear, damaged heads, besides of course quite common defects in plate and logic that these tools are not will avail you.
smart reset does not solve many of the problems as you need to deal with badblocks and learn why smart occurred.
Do not know what your case but PC3000UDMA seems a great option despite the high cost.
SD leaves no one in fact satisfied.