SAConv avaliable subs formats (try to not use index - it might be changed in next API versions!):

ID	Name					Alias	Frame based	Ext.	Description

1	"AdobeEncoreDVD"			-	+		txt	Adobe Encore DVD
2	"AdvancedSubStationAlpha"		ass	-		ass	Advanced SubStation Alpha
3	"AdvancedSubtitles"			xas	-		xas	Advanced Subtitles
4	"AQTitle"				aqt	+		aqt	AQTitle
5	"Captions32"				-	-		txt	Captions 32
6	"CaptionsDAT"				-	-		dat	Captions DAT
7	"CaptionsDATText"			-	-		dat	Captions DAT Text
8	"CaptionsInc."				-	-		txt	Captions Inc.
9	"Cavena"				-	-		txt	Cavena
10	"Cheetah"				asc	-		asc	Cheetah
11	"CPC-600"				-	-		txt	CPC-600
12	"DKSSubtitleFormat"			dks	-		dks	DKS Subtitle Format
13	"DVDArchitectSubtitleScript"		-	-		sub	DVD Architect Subtitle Script
14	"DVDJunior"				-	-		txt	DVD Junior
15	"DVDSubtitleSystem"			-	-		txt	DVD Subtitle System
16	"DVDSubtitle"				-	-		sub	DVDSubtitle
17	"EBUSubtitlingFormat"			-	-		stl	EBU Subtitling Format
18	"FABSubtitler"				-	+		txt	FAB Subtitler
19	"I-AuthorScript"			-	-		txt	I-Author Script
20	"InscriberCG"				-	-		txt	Inscriber CG
21	"JACOSub2.7+"				js	-		js	JACOSub 2.7+
22	"KaraokeLyricsLRC"			lrc	-		lrc	Karaoke Lyrics LRC
23	"KaraokeLyricsVKT"			vkt	-		vkt	Karaoke Lyrics VKT
24	"MACDVDStudioPro"			-	+		txt	MAC DVD Studio Pro
25	"MacSUB"				scr	+		scr	MacSUB
26	"MicroDVD"				-	+		sub	MicroDVD
27	"MPlayer"				-	+		mpl	MPlayer
28	"MPlayer2"				-	-		mpl	MPlayer2
29	"MPSub"					-	-		sub	MPSub
30	"OVRScript"				ovr	-		ovr	OVR Script
31	"Panimator"				pan	-		pan	Panimator
32	"PhilipsSVCDDesigner1.5-2.0"		-	-		sub	Philips SVCD Designer 1.5-2.0
33	"PhoenixJapanimationSociety"		pjs	+		pjs	Phoenix Japanimation Society
34	"PinnacleImpression"			-	-		txt	Pinnacle Impression
35	"PowerDivX"				psb	-		psb	PowerDivX
36	"PowerPixel"				-	-		txt	PowerPixel
37	"QuickTimeText"				-	-		txt	QuickTime Text
38	"RealTime"				rt	-		rt	RealTime
39	"RichMediaProjectSubtitleFormat"	-	-		xml	Rich Media Project Subtitle Format
40	"SAMICaptioning"			smi	-		smi	SAMI Captioning
41	"SasamiScript"				s2k	-		s2k	Sasami Script
42	"SBT"					sbt	-		sbt	SBT
43	"Scantitle"				890	-		890	Scantitle
44	"Sofni"					-	-		sub	Sofni
45	"SoftitlerRTF"				rtf	-		rtf	Softitler RTF
46	"SonicDVDCreator"			-	+		sub	SonicDVD Creator
47	"SonicScenarist"			-	+		sst	Sonic Scenarist
48	"SpruceDVDMaestro"			son	-		son	Spruce DVDMaestro
49	"SpruceSubtitleFile"			-	+		stl	Spruce Subtitle File
51	"StreamSubTextPlayer"			-	-		sst	Stream SubText Player
52	"StreamSubTextScript"			ssts	-		ssts	Stream SubText Script
53	"SubCreator1.x"				-	-		txt	SubCreator 1.x
54	"SubRip"				srt	-		srt	SubRip
55	"SubSonic"				-	-		sub	SubSonic
56	"SubStationAlpha"			ssa	-		ssa	SubStation Alpha
57	"SubViewer1.0"				-	-		sub	SubViewer 1.0
58	"SubViewer2.0"				-	-		sub	SubViewer 2.0
59	"TimedText"				-	-		xml	Timed Text
60	"TitlevisionANSIWithCues"		-	-		txt	Titlevision ANSI with cues
61	"TMPlayer"				-	-		sub	TMPlayer
62	"TurboTitler"				tts	-		tts	Turbo Titler
63	"UleadDVDWorkshop2.0"			-	-		txt	Ulead DVD Workshop 2.0
64	"UleadDVDWorkshop2.0A"			-	-		txt	Ulead DVD Workshop 2.0 a
65	"ViPlaySubtitleFile"			vsf	-		vsf	ViPlay Subtitle File
66	"WincapsTextTimecoded"			-	-		txt	Wincaps text timecoded
67	"ZeroG"					zeg	-		zeg	ZeroG

