images4 ,we wrote it because there are many different ways to get a ,,cd or ,,dvd image1 and several things that can go wrong4 ,,give ,,them ,,away6 99 of their ,,cd and ,,dvd images4 ,give them away6 ,if you decide to try to sell them1 first read the trademark license at https3_/_/www4gutenberg4org_/license 4 physical disc to people who asked for it4 ,that activity was discontinued1 and instead we have archived the ,,cd and ,,dvd image files with e,book #ajhjb4 ,note that these images have not been updated - if you want the latest ,,what',s ,,an ,,iso8 ,first1 you should know what a ,,iso image file is4 ,this is a special file that represents the contents of an entire ,,cd or ,,dvd4 ,project e,books1 usually with some sort of index file and a copy of ,,gutindex4,,all 7our title listing74 ,all of the books on the ,,cd or ,,dvd are available individually via the ,web pages at https3_/_/www4gutenberg4org ,computers with ,,cd or ,,dvd burners usually come with some software to copy the ,,iso to a ,,cd or ,,dvd that you can then use in any ,,cd or ,,dvd burner4 ,some software even allows you to look at the contents of the try to maintain lists of software1 but there are many such lists on stuck4 ,,dealing ,,with ,,large ,,files ,,iso files can be quite large1 which can create some problems4 9999 ,if you have a high speed network connection 7at least cable modem or ,,dsl speed71 you can try downloading an entire ,,iso file all at once4 ,the problem is that if any data get corrupted during the download 7something that seems to happen a lot on cable modems and ,,dsl lines71 the ,,iso might not work at all4 - ,to make it easier to make sure your download is correct1 you can get the ,,iso in smaller chunks1 and use checksums to verify the integrity of the files4 ,we supply md#esums1 and sometimes other checksums4 ,if you don't have an md#esum command1 use your favorite search engine to find one 7no1 ,microsoft does not seem to make any standard checksum programs available with its ,windows operating systems74 ,for chunking1 we often provide a -parts subdirectory where the file might be divided into many chunks4 ,these files were created with the ,linux command split --bytes#aejjjjjj --suffix-length#d pgdvd4iso pgdvd4iso4 ,any ,windows or ,unix_/,linux_/,,bsd computer 7including ,mac ,,os ,x or later7 can reassemble parts using the ,unix cat command or the ,windows copy _/b command4 ,sample commands follow4 ,for both1 first cd to get to the directory where your parts files were downloaded to4 ,then3 ,to join them together on a ,unix or ,linux system1 including ,mac ,,os ,x or later1 simply3 cat pgdvd4iso48888 pgdvd4iso then1 to check integrity1 md#esum pgdvd4iso ,on ,windows1 this command should work 7first get a command shell1 i4e41 by ,start _/ ,run _/ command1 and cd to the right directory73 copy _/b pgdvd4iso499 pgdvd4iso 7,make sure that all of the iso files are in one directory47 ,checking file integrity on a ,windows_/,,dos system requires the use of a third-party application4 ,searching the internet1 and in particular various software download sites1 will give you several options for an ,,md#esum program4 #ei;d#h;a#aichgdcdiahaabb;ff#eb;e#b;e#c; e#aad is the correct sum4 ,see pgdvd4iso4md#e for the ,,md#e sums for individual files4 - ,the ,win,r,a,r program 7for ,windows computers7 can be used to reassemble 4rar files1 when available4 - ,the ,jigdo program can be used to download and assemble files based on instructions in a 4jigdo file1 when available4 - ,we are also encouraging ,bit,torrents4 ,visit the ,,cd project page for current ,bit,torrent links4 ,,for ,,more ,,information ,the ,project ,gutenberg contacts page at www4gutenberg4org includes email addresses for help4 ,,thanks for your interest in these ,,cd and ,,dvd images6 ,we hope you enjoy them1 and consider redistributing them4 ,,notes 99 ,international ,copyright ,the ,project ,gutenberg ,literary ,archive ,foundation 7,,pglaf7 is committed to complying with copyright laws4 ,,pglaf has not verified that all the e,book files on these discs meet the copyright laws in countries outside of the ,united ,states4 ,,pglaf recommends that you verify this before using these files and requests that you advise us of any problems by email to copyright ,,at pglaf4org 9999 ,a note on ,,cd and ,,dvd disc capacity4 ,it turns out that disk drive manufacturers 7including the people who make ,,cd and ,,dvd burners and blank discs7 measure disk space differently than the rest of the computer world4 ,to them1 #a,,mb1 which is #a megabyte1 is #a1jjj1jjj bytes4 ,for the rest of the computer world1 #a,,mb is #a1jdf1egf bytes4 ,we mention this because people might read their ,,dvd disc package and expect it to hold #d4g;,,gb1 but be surprised to find it can only hold about #d4cg;,,gb as the rest of the world measures space4