This file is from:
    http://hgdownload.cse.ucsc.edu/goldenPath/hg18/multiz44way/maf/README.txt

Fetch this data from:

ftp://hgdownload.cse.ucsc.edu/goldenPath/hg18/multiz44way/maf/

or via rsync:

rsync -avz --progress \
	rsync://hgdownload.cse.ucsc.edu/goldenPath/hg18/multiz44way/maf/ ./

Please note, the maf.gz files here are 31 Gb compressed data.
They uncompress to 238 Gb of data.

These files contain gap annotations and quality annotations.
There are 38 species with quality annotations.

Genomes with no quality annotations are:
Human/hg18, Mouse/mm9, Frog/xenTro2, Tetraodon/tetNig1, Fugu/fr2
    and Zebrafish/danRer5

Listing of these maf files when uncompressed:

-rw-rw-r-- 1 22558800409 Dec  4 14:56 chr2.maf
-rw-rw-r-- 1 20948913417 Dec  4 19:18 chr1.maf
-rw-rw-r-- 1 18791345654 Dec  4 14:16 chr3.maf
-rw-rw-r-- 1 16430114048 Dec  4 23:30 chr5.maf
-rw-rw-r-- 1 16311140129 Dec  4 14:04 chr4.maf
-rw-rw-r-- 1 15757411106 Dec  4 14:01 chr6.maf
-rw-rw-r-- 1 13452354808 Dec  4 13:55 chr7.maf
-rw-rw-r-- 1 12707139537 Dec  4 13:39 chr8.maf
-rw-rw-r-- 1 12166471464 Dec  4 20:05 chr10.maf
-rw-rw-r-- 1 11992322991 Dec  4 13:43 chr11.maf
-rw-rw-r-- 1 11808918482 Dec  4 13:40 chr12.maf
-rw-rw-r-- 1 10577525384 Dec  4 13:29 chr9.maf
-rw-rw-r-- 1 10048415073 Dec  4 13:47 chrX.maf
-rw-rw-r-- 1  8714651453 Dec  4 13:04 chr13.maf
-rw-rw-r-- 1  8331551709 Dec  4 17:30 chr14.maf
-rw-rw-r-- 1  7329198485 Dec  4 13:00 chr15.maf
-rw-rw-r-- 1  7306769575 Dec  4 13:02 chr17.maf
-rw-rw-r-- 1  7052284708 Dec  4 12:53 chr16.maf
-rw-rw-r-- 1  7004199978 Dec  4 12:39 chr18.maf
-rw-rw-r-- 1  5600439876 Dec  4 12:31 chr20.maf
-rw-rw-r-- 1  3475516157 Dec  4 12:50 chr19.maf
-rw-rw-r-- 1  2824712961 Dec  4 11:49 chr21.maf
-rw-rw-r-- 1  2716270988 Dec  4 12:06 chr22.maf
-rw-rw-r-- 1   304230769 Dec  4 11:20 chrY.maf
-rw-rw-r-- 1   105533048 Dec  4 10:40 chr6_cox_hap1.maf
-rw-rw-r-- 1    93123449 Dec  4 10:39 chr6_qbl_hap2.maf
-rw-rw-r-- 1    65926244 Dec  4 10:40 chr6_random.maf
-rw-rw-r-- 1    44090081 Dec  4 10:36 chr17_random.maf
-rw-rw-r-- 1    36840862 Dec  4 10:37 chr5_h2_hap1.maf
-rw-rw-r-- 1    27638870 Dec  4 10:37 chr1_random.maf
-rw-rw-r-- 1    22704103 Dec  4 10:38 chrX_random.maf
-rw-rw-r-- 1    21252240 Dec  4 10:37 chr3_random.maf
-rw-rw-r-- 1    14399909 Dec  4 10:39 chr21_random.maf
-rw-rw-r-- 1    12329431 Dec  4 10:38 chr4_random.maf
-rw-rw-r-- 1     7241098 Dec  4 10:37 chr7_random.maf
-rw-rw-r-- 1     7216970 Dec  4 10:37 chr8_random.maf
-rw-rw-r-- 1     7035942 Dec  4 10:34 chr15_random.maf
-rw-rw-r-- 1     5669947 Dec  4 10:37 chr9_random.maf
-rw-rw-r-- 1     5573175 Dec  4 10:36 chr2_random.maf
-rw-rw-r-- 1     4152732 Dec  4 10:37 chr13_random.maf
-rw-rw-r-- 1     3989700 Dec  4 10:37 chr22_random.maf
-rw-rw-r-- 1     2550081 Dec  4 10:36 chr5_random.maf
-rw-rw-r-- 1     2527814 Dec  4 10:36 chr11_random.maf
-rw-rw-r-- 1     2161466 Dec  4 10:34 chr19_random.maf
-rw-rw-r-- 1     1934303 Dec  4 10:34 chr16_random.maf
-rw-rw-r-- 1     1599856 Dec  4 10:36 chr22_h2_hap1.maf
-rw-rw-r-- 1     1510665 Dec  4 10:35 chrM.maf
-rw-rw-r-- 1      791355 Dec  4 10:36 chr10_random.maf
-rw-rw-r-- 1      288891 Dec  4 10:33 chr18_random.maf
      Name                          Last modified      Size  Description
Parent Directory - upstream1000.maf.gz.md5 2019-10-17 08:11 54 upstream2000.maf.gz.md5 2019-10-17 08:40 54 upstream5000.maf.gz.md5 2019-10-17 09:30 54 md5sum.txt 2009-01-27 13:09 2.4K chr18_random.maf.gz 2008-12-04 10:33 48K chr10_random.maf.gz 2008-12-04 10:36 127K chr22_h2_hap1.maf.gz 2008-12-04 10:36 229K chrM.maf.gz 2008-12-04 10:35 257K chr16_random.maf.gz 2008-12-04 10:34 273K chr19_random.maf.gz 2008-12-04 10:34 308K chr5_random.maf.gz 2008-12-04 10:36 374K chr11_random.maf.gz 2008-12-04 10:36 385K chr22_random.maf.gz 2008-12-04 10:37 617K chr13_random.maf.gz 2008-12-04 10:37 642K chr2_random.maf.gz 2008-12-04 10:36 751K chr9_random.maf.gz 2008-12-04 10:37 853K chr7_random.maf.gz 2008-12-04 10:37 1.1M chr8_random.maf.gz 2008-12-04 10:37 1.1M chr15_random.maf.gz 2008-12-04 10:34 1.1M chr4_random.maf.gz 2008-12-04 10:38 1.8M chr21_random.maf.gz 2008-12-04 10:39 2.3M chr3_random.maf.gz 2008-12-04 10:37 3.1M chrX_random.maf.gz 2008-12-04 10:38 3.2M chr1_random.maf.gz 2008-12-04 10:37 3.9M chr5_h2_hap1.maf.gz 2008-12-04 10:37 5.0M chr17_random.maf.gz 2008-12-04 10:36 6.2M chr6_random.maf.gz 2008-12-04 10:40 9.2M chr6_qbl_hap2.maf.gz 2008-12-04 10:39 13M chr6_cox_hap1.maf.gz 2008-12-04 10:40 15M chrY.maf.gz 2008-12-04 11:20 43M chr22.maf.gz 2008-12-04 12:06 335M chr21.maf.gz 2008-12-04 11:49 354M upstream1000.maf.gz 2019-10-17 08:11 382M chr19.maf.gz 2008-12-04 12:50 421M upstream2000.maf.gz 2019-10-17 08:40 681M chr20.maf.gz 2008-12-04 12:31 688M chr16.maf.gz 2008-12-04 12:53 861M chr18.maf.gz 2008-12-04 12:39 862M chr17.maf.gz 2008-12-04 13:02 883M chr15.maf.gz 2008-12-04 13:00 892M chr14.maf.gz 2008-12-04 17:30 1.0G chr13.maf.gz 2008-12-04 13:04 1.0G chrX.maf.gz 2008-12-04 13:47 1.2G chr9.maf.gz 2008-12-04 13:29 1.3G chr12.maf.gz 2008-12-04 13:40 1.4G chr11.maf.gz 2008-12-04 13:43 1.4G chr10.maf.gz 2008-12-04 20:05 1.5G upstream5000.maf.gz 2019-10-17 09:30 1.5G chr8.maf.gz 2008-12-04 13:39 1.5G chr7.maf.gz 2008-12-04 13:55 1.6G chr6.maf.gz 2008-12-04 14:01 1.9G chr4.maf.gz 2008-12-04 14:04 2.0G chr5.maf.gz 2008-12-04 23:30 2.0G chr3.maf.gz 2008-12-04 14:16 2.3G chr1.maf.gz 2008-12-04 19:18 2.5G chr2.maf.gz 2008-12-04 14:56 2.7G