Re: [Pan-users] Re: Re: Could not decode article - file may be corrupt/incomplete

[Martijn Otto]

If you want to see the problem 'live', the problem also occurs with
the entire season one of CSI posted to a.b.multimedia. Just filter
with CSI.S01 every file fails. It's posted more recently, maybe
something of that has made it.

2006/1/24, Duncan <address@hidden>:
> Martijn Otto posted <address@hidden>,
> excerpted below,  on Mon, 23 Jan 2006 22:58:11 +0100:
>
> >> I'm not sure how BNR2 works, but does it possibly automatically integrate
> >> the PAR files when needed to rebuild the post?  If so, that might explain
> >> it, as PAN doesn't.
> >>
> >
> > It does not, and even if it did, i do not believe that would explain
> > this behaviour. PAN isn't able to decode any of the articles. The
> > directory where i decode it to stays completely empty, not even the
> > PAR files get through.
> >
> > The problem, as i see it, lies in the decoding of the message. For
> > some reason, BNR2 is able to decode it, where PAN is not.
>
> You did mention it's yEnc, also.  yEnc includes in the specification a
> CRC-32 (IIRC, something similar if not) check built-in, with the
> check-value posted with the encoded file.  I believe PAN will refuse to
> decode the file if the result doesn't match the included check-value, as
> I've seen messages to that effect on occasion.  Maybe BNR2 either doesn't
> verify the check-value, or assumes you'd rather have the corrupt file than
> no file, if it doesn't verify, and decodes it anyway?
>
> One of the reasons I wanted to see the posts for myself was to
> independently verify whether they passed the check, here, and to check out
> a couple other possibilities, such as whether the poster is using a
> non-standard posting client that might be getting it wrong, somehow,
> whether /everything/ by this poster ends up bad, whether perhaps it's a
> particular server mangling it, etc.
>
> >> Unfortunately, the named posts have scrolled off the server, here (or got
> >> caught in my filters), so can't check them.  I'm just using my ISP's
> >> server, which is rather crappy for multi-part binaries, which I don't do
> >> much of anyway (and I use klibido for all my binaries, anyway), so it's
> >> probably the server.
> >>
> >
> > That's strange, they were posted only about three days ago. Maybe
> > someone else has some insight as to what is going on.
>
> I /said/ it was rather crappy for multi-part binaries.  2-3 days is about
> it (single-part binaries like the still-pix groups have a longer
> retention, a couple weeks, anyways, and text groups are longer still,
> months), and even then, completion is apparently pretty bad, according to
> those that /do/ use the multi-part groups regularly, right now.
> Unfortunately, a good ISP-bundled news provider is rather hard to find --
> they either outsource to someone like supernews or giganews and
> ridiculously cap downloads (a gig a month isn't uncommon, sometimes
> INCLUDING overview downloads, or they allow unlimited downloads but cap
> the access rate to low-single-digit multiples of dialup -- say 128 or
> 256kbps total of multiple connections), or handle it themselves and simply
> can't keep up with the two-terabyte-plus-and-growing-per-day full
> newsfeeds.  Increasingly, ISPs are either not providing bundled news at
> all, or only a limited text-group feed.
>
> Thus, a serious news hound is increasingly HAVING to have at least one
> dedicated news provider, either for backups, or as their main service, if
> one is unlucky enough to have a gig-a-news-a-month capped service, or /no/
> binary news bundled with the ISP services.  I've always argued that the
> serious binary news hound will have at least two sources anyway, but while
> it /used/ to be that one could either buy a reliable backkup at a higher
> per-gig cost or a not-quite-as-reliable-but-cheap flat-rate service,
> depending on the /other/ one of the two from your ISP, it's increasingly
> the case that the ISP is now /both/ unreliable and low-bulk, because it's
> /so/ unreliable/ or /so/ low-bulk, so a serious biinary news hound has to
> fork over additional fees to TWO third party news providers, as the ISP's
> service is neither bulky enough to substitute for the flat-rate service
> nor reliable enough to substitute for the backup service.
>
> Anyway, as I said, I'm only using my ISP's services, recognizing that I
> don't see everything, but it's good enough for single-part binaries, which
> is mostly what I do in binaries, and I don't consider myself all that
> serious a binary news hound anyway, so it's sufficient for me.
>
> --
> Duncan - List replies preferred.   No HTML msgs.
> "Every nonfree program has a lord, a master --
> and if you use the program, he is your master."  Richard Stallman in
> http://www.linuxdevcenter.com/pub/a/linux/2004/12/22/rms_interview.html
>
>
>
>
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