macOS Sierra: Burning a CD from Darik's Boot and Nuke iso File

Command:

$ sudo dd if=~/Downloads/dban-2.3.0_i586.iso of=/dev/disk6s2


Result:

32656+0 records in
32656+0 records out
16719872 bytes transferred in 30.549265 secs (547308 bytes/sec)

FreeBSD: Downloading iso (Unified Extensible Firmware Interface, Bootonly) & Finding the Checksum (SHA256)

Command (Download):

$ wget ftp://ftp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/10.3//FreeBSD-10.3-RELEASE-amd64-uefi-bootonly.iso


Result:

--2016-09-17 12:02:19--  ftp://ftp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/10.3//FreeBSD-10.3-RELEASE-amd64-uefi-bootonly.iso
           => ‘FreeBSD-10.3-RELEASE-amd64-uefi-bootonly.iso’
Resolving ftp.freebsd.org... 2610:1c1:1:606c::15:0, 96.47.72.72
Connecting to ftp.freebsd.org|2610:1c1:1:606c::15:0|:21... connected.
Logging in as anonymous ... Logged in!
==> SYST ... done.    ==> PWD ... done.
==> TYPE I ... done.  ==> CWD (1) /pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/10.3/ ... done.
==> SIZE FreeBSD-10.3-RELEASE-amd64-uefi-bootonly.iso ... 247324672
==> EPSV ... done.    ==> RETR FreeBSD-10.3-RELEASE-amd64-uefi-bootonly.iso ... done.
Length: 247324672 (236M) (unauthoritative)

FreeBSD-10.3-RELEASE-amd64-uefi-bootonly.iso                                               100%[========================================================================================================================================================================================================================================>] 235.87M   483KB/s    in 11m 5s

2016-09-17 12:13:27 (363 KB/s) - ‘FreeBSD-10.3-RELEASE-amd64-uefi-bootonly.iso’ saved [247324672]


Command (Finding the checksum):

$ curl ftp://ftp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/10.3//CHECKSUM.SHA256-FreeBSD-10.3-RELEASE-amd64 | grep 'uefi-bootonly.iso)'


Result:

  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  2392  100  2392    0     0    665      0  0:00:03  0:00:03 --:--:--   665
SHA256 (FreeBSD-10.3-RELEASE-amd64-uefi-bootonly.iso) = d9f1d52639821bbd818844f1899a5cf2a5601143ca76c095158405bf14719ebb

Flash video

• Flash video is Digital container format
• Flash Video may be embedded in SWF
• SWF is acronym for Small Web Format
• FLV and F4V are Flash Video
• F4V is based on ISO base media file format
• F4V started from Flash Player 9 update 3
• FLV and F4V are supported in Adobe Flash Player
• FLV was originally developed by Macromedia
• Flash Video uses RTMP
• RTMP is acronym for Real Time Messaging Protocol
• RTMP is a Proprietary protocol
• FLV may contain videos with different codecs
• Codecs includes Sorenson Spark, VP6, H.264, HE-AAC
• SWF supports video from Flash Player 6
• Flash Player 7 added support for FLV
• Flash Player does not check Filename extension
• F4V is completely different from FLV
• F4V does not support Screen video
• F4V does not support Sorenson Spark
• F4V does not support VP6 video compression format
• F4V does not support ADPCM
• F4V does not support Nellymoser audio compression format
• F4V is strongly recommended by Authors of Flash Player
• FLV has limitation when streaming H.264 or AAC
• File suffix for Flash Video is .flv ?
• Internet media type for FLV is video/x-flv ?
• File suffix for F4V is .f4v ?
• Internet media type for F4V is video/mp4 ?
• SWF for Flash Player 6 or later can communicate with Adobe Flash Media Server
• Adobe Flash Media uses RTMP
• Flash Player can play FLV embedded in SWF created for Flash Player 7
• Flash Player can play F4V embedded in SWF created for Flash Player 9
• FLV contain Bitstream of variant of H.263
• FLV uses Sorenson Spark
• Sorenson Spark is a variant of H.263
• Sorenson Spark is older Codec
• Sorenson Spark is widely available and compatible
• Sorenson Spark is the first Codec supported in Flash Player
• Sorenson Spark is required Video coding format in Flash Player 6 and 7
• On2 TrueMotion VP6 is supported in Flash Player 8 and newer
• On2 TrueMotion VP6 is preferred in Flash Player 8 and newer
• On2 TrueMotion VP6 has better quality than Sorenson Spark
• On2 TrueMotion VP6 is computationally more complex than Sorenson Spark
• Screen video is also called Screenshare
• FLV supports two versions of Screenshare
• Screenshare is an Codec for Screencast