whoa.. 888 comments posted, *just realize it, i got lucky number haha..

whoaa.. thanks dude for give me such information, it's really worth reading it, from now on i think i'll use 7zip for compresing :)
sorry i'm not careful enough when read aniluv post..
@aniluv i expect that -__-, you already reply that many posts above after all, forgive this slug for not read your post carefully *bow hehee..

what happened to one piece? all series gone,cant even search it.

*my bad..didnt read the latest update.

I have a problem with PeejeShare.
The download stopped halfway.
It only happened 1 time so far.

If CRC error, that means the file is corrupt
you have to download it again and hopefully it's not corrupt/broken

Thanks for helping to explain. Your clarification is so much better. I am lazy =P.

thanks for the reply :)

I certainly think it is a good thing that there are open source and free alternatives for many programs out there. Quite sad that the common problem, it seems, with these open source programs is that the end users often have to be quite tech-capable or to wait for someone in the developing team to add features that are typical of the paid apps. Of course, given its free nature, I wouldn't expect too much anyways, just saying :)  I may try to learn to write automated codes the next time I have some free time :)

As for the recovery thing, I have to admit I'm a bit of a safety-nut :) ... but not without reasons, that preference for recovery and extra backups came after some horrible personal experience. Not very often, in fact it may be quite rare, but at one time or another some of my important files, and also their backups version stored in archives, are "magically" corrupted for no apparent reasons. So after that I have a habit of backing up things AND adding recovery to them :)

erh, I think you didn't read aniluv's post carefully enough. He said ".rar file type you can use both 7z and winrar". And from experience with both 7zip and winrar, I know that this is true. So yes, 7zip can extract .rar files.

Both programs have their own advantages over the other, just like aniluv pointed out.

7zip can extract .zip .rar and .7z, and the cool thing is that it can even extract files from damaged archives (not always successful, but yes, it can. WinRAR can't do something like that by the way). And generally speaking, I think 7zip has a higher compression rate than WinRAR, i.e. you can make smaller archives from larger files and share them more easily.

WinRAR can extract files from almost any archive type you can throw at it. And of course winrar can generate .rar files while 7-zip can't (7-zip can open and extract .rar files but can't CREATE .rar files). And in winrar you get a lot of cool functions to use with the rar file, such as adding recovery records, multi-folder auto compression, strong password management ... But winrar sometimes gives errors when extracting .7z files, so for those you better use 7-zip, it's free anyways.

So, I guess you should have both WinRar AND 7-zip installed, you'd probably be better off that way.

hmm... does 7-zip can't extract .rar? why does people use 7z in the first place if we already have poweful compresing with rar..? -___-
you know what i mean, maybe 7-zip have some good features, but WinRAR is much more world wide.. i hope you know what i'm trying to say..

Good points, I didn't think of those.
Lack of recovery is a notable omission in the 7z format, although I do question the necessity of it these days (P2P applications do chunk hashing, transport streams and filesystems support checksumming). Perhaps it seems a little odd for a compression format, as the idea of compression is to remove redundancy whilst error recovery's aim is to increase redundancy. I guess you'd need to use an external application like PAR for this purpose, but I do take your point that integrated support may be nicer for some.

I've generally write scripts for more complex archive creation tasks, but taking a look at WinRAR it seems that it does have some handy ability to do stuff like exclude files or create multiple archives at a time. Isn't a format limitation though, so may be doable by another program. I know there are alternative archivers which compress to 7z, such as PeaZip, but I haven't really tried them so I don't know whether they have the ability to do this.

Good points - thanks for putting them forward.
I personally support 7z as it's free and open, has better compression (with the drawback that the 7-zip application doesn't always adaptively select  optimal compression methods whilst WinRAR does) and can be faster on many core machines as WinRAR can only use 2 threads. The format's support for chained filters is a pretty nice feature too.

I think for .rar file type you can use both 7z and winrar, though winrar could have more features. For .7z file, it is better to use 7-zip.

Honestly, I do not use the function of compressing multiple folders into multiple archives, so i am afraid i can't help you with that. Maybe admin can help u?

erh ... I wanna ask something, 7-zip can't create archives with recovery records or repairing function, and it doesn't have the function to compress multiple folders into multiple archives like WinRAR (it can compress multiple folders into ONE archive, I know that), does it? Purely asking, don't get my intention wrong, I'm not saying which is better than which. Just that I'm kinda fond of the recovery and automated compression functions of WinRar. If there is something like that in 7-zip that I didn't see, please tell me how to get to that, thanks.

after see few post on this page my question is.. which one is better? 7z or WinRAR?
just curious tehee~~