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DVDs are usually less than 5GB. 1TB drives cost $40 these days, less if amortized over larger disks. Which means $100 buys you enough disk space for two redund

DVDs are usually less than 5GB. 1TB drives cost $40 these days, less if amortized over larger disks. Which means $100 buys you enough disk space for two redundant copies of 200 movies assuming you vobcopy them; about twice or thrice if you convert to h264 or h265 or av1; and half again if you have BD quality rips. That’s about 50cents/movie for two copies, half if you only keep one. Is this really prohibitive?

olliej 8y ago
I assume people with blue ray want to rip at original quality - isn’t that 10s of gig per disk? (I have never bought blue ray so have no idea). For me the problem was ripping my dvds just took so long, and wasn’t automatable (weirdly my bottom of the line Mac mini struggles with re-encoding ;) )
- loeg 8y ago
  Yep, Blu-rays can store something like 25GB per layer; industry standard for movies is dual layer (50GB). Rips can achieve comparable quality with lower bitrate than used on the original disk. Blu-ray dates to 2006 and (typically) uses inefficient high bit-rate H.262 ("MPEG 2", which DVDs used), H.264 (AVC), or VC-1. Rips can use high-efficiency H.265 ("HEVC"). Typical for a 1080p H.265 encoding is 9-15 GB. (Lower for animated films.) UHD Blu-rays do use the more efficient H.265 already, but are much higher resolution as well. I'm not sure how prevalent they are.
  - bscphil 8y ago
    The vast majority of newer Blurays use H.264, which is pretty efficient (much more than the other two). In addition, if you're just wanting to back up the film, and not any special features on the disk, at least half of films fit in 25 GB with no reencoding required. One big downside of reencoding in HEVC is that for a moderate gain in compression (0-50% depending on the film), you considerably increase your playback requirements. I use a Raspberry Pi 3 with Kodi as a playback device, and it's not capable of playing 1080p HEVC videos. UHD Blurays are getting more common. They usually come on 66 GiB disks, and it's becoming more common to let the video take up most of that, and bundling a second disk of special features if necessary. So even backing up the main feature of a UHD can easily run you 50+ GiB.
    - loeg 8y ago
      > The vast majority of newer Blurays use H.264, which is pretty efficient (much more than the other two). Right; still quite a bit less efficient than H.265, though. > One big downside of reencoding in HEVC is that for a moderate gain in compression (0-50% depending on the film), you considerably increase your playback requirements. Yes, although this is becoming less true as more hardware offload support becomes available. For example, Nvidia 750, 950-960, and 1030 are all capable of HEVC offload[1]. The latter can be had new for ~$85; the others are probably a bit harder to find but given they're older midrange cards at this point maybe they're a little cheaper. > So even backing up the main feature of a UHD can easily run you 50+ GiB. Sure, I don't think there's any economical way to reduce storage requirements of UHD significantly without defeating the point. On the other hand, I don't think the extra pixels really matter as much as higher color depth (10 or 12 bit) and fewer artifacts at lower resolution, unless you've got a home IMAX or something. [1]: https://developer.nvidia.com/video-encode-decode-gpu-support-matrix https://developer.nvidia.com/video-encode-decode-gpu-support...
- 013a 8y ago
  Depends on the movie and if its 1080p or 4K, but generally I anticipate a ripped Bluray to be around 60gb. Re-encoding them is a PITA as well. Even on a HEDT gaming desktop with a brand new CPU, the process only proceeds at 8-10fps, if that, so at least 2x movie runtime. Maybe there are some ways to involve the video card which can speed it up, but I haven't tried it. And even if you want to and can keep the originals, you'll want to re-encode it and keep both; most Plex clients (think: Apple TV, shitty laptop, etc) simply can't handle raw 4K bluray playback.
  - Rebelgecko 8y ago
    ffmpeg supports a variety of hardware encoders but supposedly the quality will be worse than a CPU-encoded video at the same bitrate
- michaelmrose 8y ago
  Pirated 4k videos are often 7-15GB. I presume this is optimized for size over maximum quality.
  - jumelles 8y ago
    That seems too small IMO. Encoded BD rips average about 20-30 GB; remuxes (no compression/encoding) begin around 50 GB.

olliej 8y ago

I assume people with blue ray want to rip at original quality - isn’t that 10s of gig per disk? (I have never bought blue ray so have no idea). For me the problem was ripping my dvds just took so long, and wasn’t automatable (weirdly my bottom of the line Mac mini struggles with re-encoding ;) )

loeg 8y ago
Yep, Blu-rays can store something like 25GB per layer; industry standard for movies is dual layer (50GB). Rips can achieve comparable quality with lower bitrate than used on the original disk. Blu-ray dates to 2006 and (typically) uses inefficient high bit-rate H.262 ("MPEG 2", which DVDs used), H.264 (AVC), or VC-1. Rips can use high-efficiency H.265 ("HEVC"). Typical for a 1080p H.265 encoding is 9-15 GB. (Lower for animated films.) UHD Blu-rays do use the more efficient H.265 already, but are much higher resolution as well. I'm not sure how prevalent they are.
- bscphil 8y ago
  The vast majority of newer Blurays use H.264, which is pretty efficient (much more than the other two). In addition, if you're just wanting to back up the film, and not any special features on the disk, at least half of films fit in 25 GB with no reencoding required. One big downside of reencoding in HEVC is that for a moderate gain in compression (0-50% depending on the film), you considerably increase your playback requirements. I use a Raspberry Pi 3 with Kodi as a playback device, and it's not capable of playing 1080p HEVC videos. UHD Blurays are getting more common. They usually come on 66 GiB disks, and it's becoming more common to let the video take up most of that, and bundling a second disk of special features if necessary. So even backing up the main feature of a UHD can easily run you 50+ GiB.
  - loeg 8y ago
    > The vast majority of newer Blurays use H.264, which is pretty efficient (much more than the other two). Right; still quite a bit less efficient than H.265, though. > One big downside of reencoding in HEVC is that for a moderate gain in compression (0-50% depending on the film), you considerably increase your playback requirements. Yes, although this is becoming less true as more hardware offload support becomes available. For example, Nvidia 750, 950-960, and 1030 are all capable of HEVC offload[1]. The latter can be had new for ~$85; the others are probably a bit harder to find but given they're older midrange cards at this point maybe they're a little cheaper. > So even backing up the main feature of a UHD can easily run you 50+ GiB. Sure, I don't think there's any economical way to reduce storage requirements of UHD significantly without defeating the point. On the other hand, I don't think the extra pixels really matter as much as higher color depth (10 or 12 bit) and fewer artifacts at lower resolution, unless you've got a home IMAX or something. [1]: https://developer.nvidia.com/video-encode-decode-gpu-support-matrix https://developer.nvidia.com/video-encode-decode-gpu-support...
013a 8y ago
Depends on the movie and if its 1080p or 4K, but generally I anticipate a ripped Bluray to be around 60gb. Re-encoding them is a PITA as well. Even on a HEDT gaming desktop with a brand new CPU, the process only proceeds at 8-10fps, if that, so at least 2x movie runtime. Maybe there are some ways to involve the video card which can speed it up, but I haven't tried it. And even if you want to and can keep the originals, you'll want to re-encode it and keep both; most Plex clients (think: Apple TV, shitty laptop, etc) simply can't handle raw 4K bluray playback.
- Rebelgecko 8y ago
  ffmpeg supports a variety of hardware encoders but supposedly the quality will be worse than a CPU-encoded video at the same bitrate
michaelmrose 8y ago
Pirated 4k videos are often 7-15GB. I presume this is optimized for size over maximum quality.
- jumelles 8y ago
  That seems too small IMO. Encoded BD rips average about 20-30 GB; remuxes (no compression/encoding) begin around 50 GB.