Silent Loon: We seem to have a slight missunderstanding here. If an amendment made abandoned works go into public domain, that would mean that nobody does or can hold the rights to it anymore. The only way lawyers could start snapping up copyrights is if, due to company failures, mergers, ect., they had already been given the rights. Again, this is by US laws (which is where I live, and are the only ones I was required to study umpteen years ago in college.)
If a company started offering these older games for digital purchase, I wouldn't mind at all. The 'catch' here being that, unless it was at a greatly discounted price, I would expect some form of support for the game. Thanks to DOSBox, such support is actually appearing for games that I have recently purchased in one form or another. Leisure Suit Larry is still (well, as of 18 months ago at least,) being produced and sold. The CD I purchased had DOSBox included, along with a front end that did all the config work for you 😀 Bethesda, using DOSBox, has released Arena as a free download, and the web site, last time I looked, also had support available to help you get it up and running. Although, IIRC, many of the answers refered to this very web forum. Now, if Bethesda wanted to charge me $4.99 or maybe even $9.99 for the game, I would jump at the chance and wouldn't hesitate to pay for it. In Betheda's case, because they are the ones releasing it, they still retain the copyright even though they are not charging anything at this time. They could, if they so choose, start charging for it in the future.
Those 2 examples would be of older works that are still being produced or supported. As such they would retain the full benifit and protection that copyright laws grant. However, lets say a company were to own the rights to a game and absolutely refuse to produce it, even going so far as to have deleted the original masters and source code, and then go on to tell people to their face, "we will not support that game, you need to go buy something newer." Don't laugh please, I actually had a support technician say those exact words to me when I was trying to get Ultima VII up and running (this was before I had even heard of DOSBox.) In cases such as this, I am all for such an amendment. The company, in this case, is basically saying, "that game is so old it is totally worthless and we aren't going to bother with it no matter how many people may want it."
Sure, companies turn a blind eye (in many cases,) to abandonware sites. But even so, such sites are still technically illegal. They are just pretending they don't know what is going on, so they never have to file any sort of legal complaint to retain their copyright. I think I covered this aspect of US copyright law in another post here. Basically, if a copyright holder is aware of an infringement, and doesn't take steps to stop it, they relinquish thier rights to that property (making it public domain.)
Next up, very few games (that's what we are all really talking about here I believe,) have a single individual as the copyright holder. I don't know about anyone else, but every time I have ever worked for a company, I had to sign an agreement, in advance, giving up all my rights to original works to the company. So, even if a company goes completely out of bussiness, the original programmer has no rights to the work in question. Usually, when a company goes under, other software companies bid on the properties owned by that company. In some cases, the company in question actually auctions off these properties in advance, to garner some closing bussiness funds. This is another issue I have with US copyright law (and this situation being one of the main reasons even individuals have incorporated when producing games.) That is, that the 'life' of the author, when a corporation is involved, is based apon the corporation itself and not any single individual. This can actually be passed on to the new company if the originator goes out of bussiness. Essentially, the copyright becomes completely eternal, as the 'author' can never actually die (if it is handled correctly.)
I'm sorry, US laws need to be totally re-vamped (IMHO.) The laws and precedents have become so tangled and complex that the legal system is becoming clogged. So, I guess I'm saying that the US legal system needs an enema 😀
Personally, if such an amendment was passed, and companies started taking steps to retain their copyrights, I don't see a real problem. The easiest ways for companies to do this would be to just dig up the original masters, build an online store, and start selling digital download versions. With the support being a simple FAQ and a link to this forum. The companies that have been turnining a blind eye (and they have to maintain, at all times, that they have no idea this is going on,) problably wouldn't even wory about copy protecting the works either. After all, the monies made from the site would just be icing off the cake (yes, off, as in totally extra and not really expected.) Sure, there may be a company or two (**cough** EA **cough**,) who might put rediculous prices on these, but as the copyright owner, that is there right, and they would be totally ignoring the fact that this would probably adversely impact their sales on newer games.
Now, here is the kicker that some may not have considered. What an amendment like this would really work for are those games were nobody knows who owns the rights any more. Because of their contract, it cannot be the original creator. The original company, if they are still around, have a totally new management staff, who could be completely unaware that they own those rights. They may have even destroyed the original masters (and maybe even code,) during a clean up of their servers. If the original company is no longer around, the rights could have moved through several different hands, until it ended up at a totally unexpected place. The new company may not even be in the software bussiness at all. In both cases, the company in question may not even be able to produce proof that they own those rights. Thus, if the copyright was set up correctly in the first place, the rights to those works are in eternal limbo. They are protected by copyright law, but can never be produced again.
The only real drawback, that I can think of, are those extremely rare games that were held by a single individual. They may be in a place where they can't produce or support their game. The owner (or their estate if they are no longer around,) may not want to lose their copyright, but cannot conviently take the necessary steps to keep them. However, with the internet becoming more and more available, this should become less of a problem. Even someone that no longer has a computer can get on the net now (the library here has free access.) All they really have to do is go to one of a myriad of free web hosting sites, set up a download page, and put it up for download. Sure, they wouldn't be making any money off of it, but they would, at least be protecting their copyright for the time being. The next step (though I would personally advise skipping the first one if you can,) would be to find a digital distribution site (such as Direct2Drive,) that sells other peoples games, and set it up with them. Then, they could get a little bit of income that way (where now they are probably getting none, since they cannot produce the game anymore.)