Date: Mon, 2 May 2005 23:09:54 -0700 From: Jacob Meuser <jakemsr@jakemsr.com> To: freebsd-multimedia@freebsd.org Subject: Re: ripping cd's Message-ID: <20050503060954.GC11140@puff.jakemsr.gom> In-Reply-To: <20050501214952.B49531@spadger.best.vwh.net> References: <4275A2C3.1000304@chuckr.org> <20050501214952.B49531@spadger.best.vwh.net>
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On Sun, May 01, 2005 at 09:49:52PM -0700, Andrew Sparrow wrote: > On Mon, May 02, 2005 at 03:47:15AM +0000, Chuck Robey wrote: > > I am rather amazed that the video work on my amd64 box is going to > > remarkably well. The sound works digitally across 5.1 channels, and > > what's more, it looks like all of k3b's functions (at least to the point > > I understand them) are all working. All completely without any reliance > > whatsoever upon x86 compatibility. It's all done with native-built > > ports, no packages. > > > > Anyhow, I have acidrip working well, and I've ripped a dvd. This is > > that dvd from a few weeks ago, its' got region==2, and it's in PAL, so I > > want to set it up in some format that plays in my friend's old dvd > > player, so he can finally, at long last *see* the dvd he paid for. > > Uh, Y'know, the Cyberhome CH-300 s a tiny little DVD settop. It has > has a secret squirrel menu to set it multi-region, does some of the > best NTSC/PAL conversion I've seen - ever - on-the-fly, and plays > all kinds of non-standard formats[0] without blinking an eye. > > It has progressive scan, SPDIF output and extra stuff I could care > less about - but it Just Works. > > They run $30-$50 at Rat Shack, depending they're on offer at the > moment (they often are). They had a bad rap for reliablity at first > - but I've been hammering mine for a year, and nary a glitch.. > > Mine groks dvdatuthor'd DVDs and VCD/SVCD/XVCD/KVCD etc. generated > by vcdimager just fine (and then burnt with cdrecord-ProDVD/growisfs/cdrdao > etc). > > I mention the settop box because transcoding from PAL to NTSC is a > CPU pig, - and inevitably the requantization will lose qaulity. But > not as much as the transcoding will... And you cannot avoid the > transcoding if you're scaling from NTSC to PAL or vice versa. recent versions of both ffmpeg and transcode have some snappy amd64 optimizations. I can _just about_ capture live NTSC from bktr, and audio too and output DVD compliant program streams on a modest amd64 machine. heck, on "slow" OpenBSD nonetheless. but yes, generally speaking, PAL <-> NTSC is CPU intensive. > Going from DVD9 to DVD5 will also lose quality. Period. You may not a lot of DVD9 material is useless filler. you can cut that out and rebuild the DVD file structure, without ever reencoding/requantizing. in such case (the common case), you will not lose any quality. > notice it, but you're reducing a ~8.5GB DVD to half that.. Unless > you're going to burn this on a $13 dollar DL blank(!), and I don't > even know how many DVD players will grok those yet. > > > He could have watched it some weeks ago on my system, but he wants to > > see it at home. How unreasonable! Anyhow, after I ripped it with > > Acidrip, it came right up on an .avi format, all in the same format. > > I sympathise. I have a bunch of Region 2 DVD9 DVD's. I leave them > alone and I play them in my $40 settop DVD player. They play great. > > > So, question, anyone know what sort of format plays from a cd to a dvd > > player (I am happily willing to lose the menus) > > My personal favorite is tovid: http://tovid.sourceforge.net/ > > It's got a few Linux-ism's - but not that many[1], and it seems to > do overall, the most reliable, best quality, most efficient, job > of all the myriad of conversion scripts I've seen to date. It'll > read a DVD directly and re-quant it, IIRC (I don't ever do that). streamDVD or tcrequant from transcode. I recommend requantizing, with some limits. it's much, much fater than reencoding. and if I stay close to the default quantization changes, in most cases I really don't notice much difference (an example artifact would be "four point halos" around bright areas). > The dvdrip (dvd::rip) port will turn your DVD into a VCD or an AVI > etc. I believe it may also convert the menus and extras etc. for > you too. > > There's also ldvd9to5 in the ports collection, which may or may not > do precisely what you want (I believe it should do, but unfortunately, > the menu options are all German, which I can't read). And I've never > had the patience to run it long enough to see. > > There's a 'Doze freeware program called DVDShrink, which actually > does an awesome job of shrinking a DVD9 to a DVD5. Much better than > any *nix-based software, I'm sorry to say. It's default setting is > to remove region codes. pretty much all this does is repack the DVD, allowing you to leave out the filler. granted, there is no such GUI on *nix, at least not one in wide distribution, but isn't that the case with many tasks with Win vs Nix? -- <jakemsr@jakemsr.com>
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